My grandpa has bipolar and has been married to my grandma for over 50 years... He wasn't diagnosed until a few years ago and at that point he was pretty out of control but my grandma stuck by him even when it looked like he was going to spend their life savings on all sorts of manic projects. You just have to find that person who will love you through thick and thin.

As for myself, I've only been in a relationship for 3 months but we ended it because it was going to become long distance, which is just too hard at my age (20). Don't date a lot because my standards are sky high... can't seem to lower them! I'm a hopeless romantic!