FACEBOOK ISSUES

Little background. Married 21 years with a son who was a high school senior. Husband is 57. For the last 5 years, my husband has been physically with us, but just vacant... He started to drink more, but was never a falling down drunk, all he did was come home from "work" and sit in front of the tv and watch sitcoms or sleep. In April, he called my son because he was at a bar, and someone wouldn't let him drink. He had lied to me and told me he was going to the hardware store ( 5 hours earlier ) . Needless to say, I finally confronted him about his drinking. He swears he wasn't an alcoholic. I decided to check his bank account and discovered that 260 days out of the last 365, he had been going to 1 or 3 bars that he was frequenting. I had NO IDEA he was going. He went to rehab for a few weeks but quit because of the expense and he wasn't as bad off as the others ( which is true ). He had quit drinking, but I have found out (found receipts) that he has gone into a couple of restaurants and had 1 beer. The problem is, that he LIED about it. My son and I were out of town last weekend on a trip and posted many pictures on Facebook. My son mentioned "Dad never likes or leaves a comment on any of our pictures, but I bet he does on that bartender's facebook page". My husband has his Facebook preferences set where no one can see his friends unless they "like" something on his page. I looked and sure enough, two of the bartender/waitresses ages 23 and 25. Were on his friends list. I called him that evening and let him know that it upset our son (our son said, "it's freaking creepy") and it upset me as well. My husband assured me it was nothing and he never comments on them. I still feel that he should remove it. He is old enough to be their father ( or even grandfather). I really feel that he needs to unfriend these people and stick to people his own age and in more positive atmospheres. Any thoughts ?