Marriage would be really exciting for him. The thought of finally being able to wed the person he loves most will get him fired up, so during the ceremony he'll be all laughs and smiles. He'll be sure to talk to all of his friends and family, have a few drinks here and there, and will smother you in kisses all night. He'd be jovial as your husband and would tend to your every need.
Germany would want everything to be perfect and follow according to plan, so he would stress about it a lot and would definitely need comforting from his lover. He would be very nervous yet excited on the inside during the actual wedding day, but on the outside he would be composed and collected. Once the marriage is sealed with a kiss, he'll feel relieved that the hard part is done and over with and will be glad to have that off of his chest. He'd be very hardworking as your husband and will beat himself up if he feels he has done something wrong.
Japan would suppress his true ecstasy, but there would be a soft, assuring smile on his face when he spots his lover walking down the isle. He'd want to take a lot of pictures of the two of you together so he could cherish the moments easier, so put on your best smile and prepare for a camera flash. Actions speak louder than words in Japan's case, so expect him to get a bit touchy with you, like cuddling on the couch or kissing you goodnight.
America wouldn't be able to accept the fact that he's actually getting married- it would be one of the best things that has ever happened to him. He would be really serious about it and wouldn't goof off, as he views marriage to be a really important event in life and something you can't be immature about. He would hire a great band with good music, fine food, and would be out on the dance floor to dance the night away with you. Alfred would be a riot as a husband, always trying to please you and make you happy.
England would just want a traditional and simple wedding, nothing too big or fancy. A blush would dust his cheeks just thinking about it, and when it becomes a reality, his face would be a deep red all the way through the entire event. Being a husband will give him all sorts of new responsibilities, but he'll be prepared for it. He'll do little things for you as your husband and will try to cook for you, but you would stop him before he sets the kitchen ablaze.
Love is a beautiful thing, isn't it? France would love the idea of marriage and he'd be really passionate about it- especially the kiss. He would put all of his affection and true emotion into it. Marriage would mean he would be all tied down, but he wouldn't mind it at all. If he's so ardent about marriage, just wait until you two go on a honeymoon. He will be a hopelessly romantic husband, so expect a lot of sweet surprises from him.
Russia would be very lighthearted about marriage, knowing that it's a turning point in his life and would treat it as such. He would be immensely grateful that someone is now 'Becoming One' with him (who isn't his sister) and would feel a new kind of protectiveness over you as your husband. You two would move somewhere warm, and he couldn't be happier. He would shower you in presents, like bouquets of pretty flowers and chocolates.
China would be calm about marriage, after all, it's simply a time where two souls will join together as 'one'. But once you two are officially deemed as newlywed, expect him to bounce off the walls shortly after he realizes what a big deal this is and why he hadn't done all of this sooner. He'll undoubtedly be a bit eccentric and superstitious as a husband, maybe even manipulative, but he would make sure that you know he loves you with unexpected kisses and hugs.
Canada wouldn't mind marriage, because he'd be marrying someone who understands him, notices him and is willing to listen to what he has to say. He would go through a series of different emotions, though in the end he'd be content with it. He'll be very gentle with you, as if you were a fragile flower that needs delicate care. This Canadian will give you all of his attention as your husband, as if he sees nobody else in the world but you.
Marriage would be a big thing for Prussia. He had never imagined that he would actually get married someday, but you need to expect the unexpected sometimes. He wouldn't really know how to handle it exactly, so he'd need some guidance on it. Once he gets the gist of it, he'd think it's totally awesome and he wouldn't feel as lonely as he did before. He'd brag about how lucky he is to have you as a lover and would show you off a bit to his friends.
Romano would be flustered when it comes to marriage and maybe even a bit awkward about it, but there is no doubt when it comes to his real emotions. The Italian would be extremely exuberant about getting married, but this time, it'll show on his face. As your husband, Romano would be the type who can grow jealous and has a hair-trigger temper, but you know that he loves you all the same.
This cheerful Spaniard would handle marriage quite well. He thinks it's a beautiful event in life and he would be lucky if it ever happens to him, so he'd be quick to agree to it. He'd be very optimistic and would try to avoid the dark points in marriage, and would help you see the light at the end of the tunnel when life isn't looking too good. He'd be a go-with-the-flow kind of husband, spontaneous and the kind to slow down and smell the roses.
Austria has gone through marriage before; he knows what it's like and would be determined not to let anything bad happen that would spoil this new marriage. He would look back at his past self and try to figure out what went wrong that led to the divorce, and would try his very best to prevent it from happening again. He wouldn't let it get to him when the day arrives, however, and he would just live in the moment and feel the happiness surge through his veins all day long. He would be thoughtful and would write songs for you as your husband and will think about you often.
Like Austria, she knows what happens during marriage. Unlike him, Hungary would be quite laid back about it and wouldn't fret about it all too much, but she would enjoy being able to experience it once again. There are two sides to this girl- the headstrong and defensive side, or the calmer and affectionate side. She would fluctuate between these two sides depending on her mood and what's going on around her.
Switzerland would try not to worry about how much the wedding would cost- after all, no amount of cash could replace love. The relationship between his lover and himself are closer than ever before, and plus, you get free and helpful gifts from friends and family, so why not get married? He would have you move in with him and would be a pretty territorial husband, but yet loving at the same time.
Liechtenstein finds marriage as cute and joyful, so of course she would be delighted to get married to her lover. It would certainly be a big step for her, but as long as you're there to hold her hand all the way through it, then she's 100% game. Liechtenstein will need protection and someone she can rely on, but otherwise she is willing to go great lengths to see you happy.
She would be so happy to the point where she may cry tears of happiness, but will attempt to keep them from spilling. Ukraine would be an extremely devoted and helpful wife, while all she asks for is love and the same loyalty in return. Ukraine would cook, clean, cuddle- you name it and she'll do it for you to the best of her ability, as long as it's nothing to drastic. She would grow emotional whenever she feels as if you don't love her anymore or loosing interest in her, so she would need reassurance.
Marriage is something Belarus has always wanted, so she would have no problem with it. But once you two agree to get married, there is no backing out of it. She would be exceedingly loyal as a wife and perhaps a bit clingy, but she will know when she is pushing her limits and will back off. She might jump to conclusions when she thinks something is up, but she'll quickly learn to trust you fully.