DEAR ABBY: My husband has an extensive sexual history. He has had sex with more than 80 partners. All the encounters were when he was in high school and in his early 20s. Most were one-night stands with female friends. When we met, he was honest, and I was understanding. He didn’t keep in touch with any of those females (pre-Facebook). But now he’s friends with several of them on Facebook, and while he doesn’t “talk” to them, he comments and “likes” many of their posts. This makes me uncomfortable because I don’t feel that past sexual partners should be part ...