So you have, I am sorry to hear about your experience. I have had an experience with a homosexual that was probably as bad. This guy befriended me at a church when I was new to the area. Not knowing his sexuality I thought him very pleasant, and was intrigued that someone could be so friendly. Well, eventually we discussed relationships, and he told me about a previous one he had had, and that it was with a man. My approach as a Christian was to stay friends with him but make it clear that I believed that was wrong. His approach was to get me in a headlock and force me to say it is not wrong.
Homosexuals are not harmless, they are mentally ill and can be dangerous, just like pedophiles. Read the account of Sodom and Gomorrah for more evidence.
Regarding their rehabilitation. If I had continued to live near to this person I hope I would have forgiven him and remained friends. As it was I moved away and didn't want to stay in contact. However, I know a chap who has had homosexual attraction but is a Christian and has coped with it while remaining celibate. This is due to support from his church. I do not know any pedophiles, but have read an article online written by one, who claims he is also celibate and never molests children. I will try and find a link. But people here who claim all pedophiles do not want to be cured are clearly wrong; neither do they know the power of prayer.