DEAR ABBY: I have been friends with “Caroline” for more than 20 years. Her husband is present when they visit us because they live out of state, and when I visit her, he is there. I have been married for 28 years, and my husband doesn’t join me when I visit Caroline. Caroline travels worldwide for work. Her husband has family near me. One time, when he was in town and she was traveling, I invited him to meet me for dinner. He got the wrong idea and thought it was a date behind his wife’s back. She knew we were ...