DEAR ABBY : My cousin’s son, “Troy,” is being married in eight months. I just received the “save the date,” and I’m trying to decide whether to attend. The wedding is out of state, requiring travel and a hotel. Troy and I haven’t spoken in years. He has never shown an interest in getting to know me. The last communication I had with him was a thank-you note for his high school graduation gift eight years ago. Once, when Troy, his brother and his mother were supposed to spend a day or two