DEAR ABBY: In the last presidential election, I had a friend who voted differently than I did. We didn’t try to persuade each other to vote “our” way, but I did share on social media some opinions about people who had taken some controversial positions. She regarded these opinions as a personal attack and stepped out of my life without warning. I have tried to re-engage with her several times — texts, Facebook messages, phone calls. One message was met with hostility, and the others have gone unanswered. I have tried to apologize for hurting her feelings even though I ...