My wife and I have only been married for about a year and a half, and in no way think we have all the answers. But we agree couples divorce too easily a lot of times. That being said we are committed to each other forever. Unless one of us breaks one of two rules:
1- Cheating
2- Physically harming the other
If one of us does, that's it.
I do agree with TEXASTROPHIES above though, you have to do what's right for you! Don't let others pump you up into making a hasty decision.
All the best and I hope everything works out.
Paul