I'm so sorry to hear about this. I do agree that cheating and drinking are two separate issues, however, often the core behind why people drink, do drugs, go to prostitutes, etc. is for the same reason. They want that "high" they get from acting out and it allows them to forget about their problems/reality for a few minutes. He could very well have some issues with sex addiction. My STBXAH visited massage parlors in the past (well, who knows how far in the past it really was.) Take care of yourself! You'll get some great advice here. The best thing you can do for yourself and your baby is to get healthy.