Re: age difference???
I think it depends on the people. Do you have the same interests? The same life goals? A lot of times a 20 year old and a 37 year old are at different points in there life. The 20 year is looking to have fun and party when the 37 year old is ready to settle down and start a life and family. At 20, you can't get into a bar, at 37 you might want to be able to go out and have a drink for time to time.
I am 22 and my boyfriend is 36. We are very happy. It just really depends on the situation. In general I don't think age matters, however can the two of you deal with it? I really would have to say I would need to know more about the two of you to really answer the question.