Yes, congrats Smudge!
I am completely in love with my husband... sometimes he is just going about normally, and I have a wave of love for him, like whatever mannerism he just displayed was so completely characteristic of him that I just have to go up and give him a kiss. Or I hear him interacting with our son, from the other room, and he's so nice, and funny, that I have to smile and feel a little tingly. We didn't have a "sudden" falling in love... it was a process of months of being friends, learning each others' styles and liking them, and gradually having those personality styles become very endearing, just because they are part of this person that means so much to me. It gradually built, and it's still building - the longer I'm with him, the more wonderful things I notice about him.