DEAR ABBY: I have been married for two years, and my husband has three grown children. He was recently planning a getaway with the youngest and included me in the plans. I didn’t want to interfere and suggested that his child might want to spend some one-on-one time with him. I later learned that not only were his other kids going, but their spouses were as well. Everyone was included but me. I felt very hurt to be excluded. When I shared with him how I felt, his response was that he couldn’t control his kids, but I feel he ...