I had a male friend in childhood, the best and closest of friends. We both had way too much time invested in our sexual desires for the ladies. Later on, I turned my life over to Christ, he did not. I traveled abroad and its been over 30 years that we have been apart. But with FB, we came back in contact, and he still focuses on his sexual apeasement after all these years. When we talk, thats what his focus is on. I cant talk to him the way I used to. I changed, he did not. But even though we have little in common anymore, I am hoping that my FB postings of my christian faith will one day make us good friends again. Be careful of burning all your bridges behind you, you may be burning the bridge that allows your friend to crossover to life. This is not to say you shouldnt change the nature of your friendship, but dont give up on him if he was really your friend. Glad to pray for you in this situation.