DEAR ABBY: My father is 83. My mother has been dead for more than 30 years. Since then, Dad has been involved with many women. But, since he turned 70, he has become involved with men, which he says he finds very rewarding and much less complicated. Dad and I always had an open and honest relationship. We have a lot of homosexual family members and friends. At the same time, I'm shocked that the fact that he is gay has been so difficult for me to accept. Have you any suggestions on how I might better deal with this?...