DEAR HARRIETTE: I recently got married, and while most of the day went beautifully, there’s one thing that’s really been bothering me: One of my bridesmaids, whom I considered a close friend, didn’t show up to the wedding. She never told me why. We had been in touch leading up to the big day, and as far as I knew, everything was fine. She had her dress, she was at the wedding rehearsal and she see…