The point I forgot to make when I mentioned fantasizing about actors is it didn't mean I didn't truly love the man I was in a relationship with, or that I didn't find him extremely attractive. In fact, my most recent ex and I had a very strong physical attraction to one another. But both of us still noticed other attractive humans. And our strong physical attraction to one another didn't mean either of us was obligated to immediately be ready for sex at all times when the other one was present (undressed, dressed in lingerie, or whatever).