DEAR ABBY: I’m a 67-year-old single white man. My girlfriend is 21 and African-American. We have been together a year and a half and are deeply in love. We have lots of fun together and go out and do things. When we are out together, people often stare at us. She’s very attractive and turns heads. I tell her everyone is looking at her because she is so beautiful, but that’s probably not totally true. We want to be together, but I’m reluctant. The love feels good and true, but the rest is scary. We would like to have children,