It's called May December romance when there is a significant age disparity between a man and a woman who are romantically involved with each other. That term is used I guess because the romance is not supposed to last longer than that.
I wouldn't worry too much about age disparity. People cannot dictate to you what makes you happy. If you find the right person, you will know. And YES, love is very important in a relationship, so is tolerance, patience, and understanding.