My husband is 19ish years older than I am. He was halfway through his sophomore year of college when I was born. When I think of it that way, it skeeves me out. I was WELL over legal age when we met, so it's no thing.
We both had an issue with it when we were first considering courtship, but it was not enough to keep us apart. We joke that I'm a golddigger and just wanted an older man for his riches. Problem was, I had the money - not him.