Happy marriage?

Hello,

I’m a female born 12/11/1985 and my boyfriend is a sheep born 3/27/1979. The incompatibility def was there while we first started dating 10 years ago. We’re both stubborn so relationship ended after a few years. We got back together 3 years ago and relationship was best it could be. He changed mostly and is my ideal partner. Do we have a chance of a happy marriage?