The answer everyone should give is, "I make my own happiness. My spouse isn't responsible for my happiness. I simply want to share it with him/her".
The reality is that it's hard work. Maybe harder than starting anew with someone else, but it's also more rewarding. The goal for me is creating an environment where it's easy for us both to be happy. Have I succeeded in that? No, because it is very hard. I'm happy that I'm with her and we have a comfortable kind of love. There are bumps, potholes, and roadblocks in this road, but I learn something from these (I hope) and eventually we'll smooth those out together. So, the short answer: Yes, I'm happy. Long answer: There are still problems that we need to resolve together to make this the most fulfilling marriage possible. And I still need lots of work.
