DEAR ABBY: I’ve been seeing a man for about a year. For the most part, we get along fine. We spend a lot of time together, and he professes his love for me. His intentions are to be together forever, although there has not been a proposal. I think I could continue this relationship indefinitely. There’s just one thing: I’m not physically attracted to him. He is presentable and well-groomed, but it can’t compensate for the fact that he is homely. I am, to put it plainly, a beautiful woman. I have always dated “in my league.” I am trying hard not to be shallow, but this bothers me greatly. Somet…