Should I help?

See, there is this Ex boyfriend who once Cheated on me, we were seeing each other for over a year and I found out he cheated on me with 7 different girls, and in the end, he chose the other girl over me, I got over it and found someone so much better and fell in love all over again, and now, that boy has choose to cheat again, and the girl he left me for dumped him and is crying and all his friends turned against him. I felt bad and we were in between our "hate" spree's (It lasts a couple weeks then we choose to be friendly) So i decided to be there for him because we were once best friends, so I started helping him get over his cheating ways but then everyone started coming after me and getting mad at me for helping him, even my boyfriend is VERY displeased.... it saddens me a lot. I just want to help him and we are meeting with a social worker every week for meetings to get him help and we talk a lot about his problems, he even cries on my shoulder, we haven't hugged since he left me for the other girl and now he wants and needs a hug all the time from me. Should I continue to help him? I think its the right choice?