As long as you are feel that you are clicking and having a good time which is what really matters then you shouldn't worry about it. However, I'm curious that if there is going to be a problem that you are in different phases in your life. I know I dated older guys before and it always seems an issue when they want to settle down or don't or if they enjoy different things that I don't because they feel I'm younger and they've been there with doing things I enjoy to do. But as long as you are HONEST with each other.. which is for all relationships then you can't go wrong