I'm studying in uni, i moved to cardiff with a friend as we both are on the same courses. We house share. Not really any issues. But i feel uncomfortable while her boyfriend visits. we are 19 he is 32. I had an uneasy feeling when i first met him, i dont know why. He just creeped me out. i couldn't put my finger on it. untill we went for drinks in town this week. i had noticed my friend drinking more since being with him. but he hardly drinks. So after having drinks, she got wasted. so he said he would take her home. i stayed in the club. and when i went to the bar the Girl who served me asked where my friend had gone. i said her boyfriend has taken her home. She then said the guys name and the company he works for and a hotel in cardiff he had worked for. i asked how she knew him and she explained. to make a long story short. she informed me that while he worked in the hotel. he attacked a female co-worker while she was drunk. and that he has a young daughter he doesnt or isnt allowed to see as the childs mother has also accused him. she then told me his last realtionship. his ex ended up in hospital due to him again being found out that he cheated (mental breakdown) but he had actually attacked another drunk girl last year, whos an alcoholic. she also made a comment about him and the ages of his partners and how they age out. i havent brought it up with my friend... but today he knocked the door (with three bottles of wine) and i just asked him if he ever worked at this hotel and if he knew the barmaid at the club. He went pale, then looked angry, my friend came to the door and he gave her the bottles and said he was going. i now feel bad like i've ruined my friends realtionship. but i cant find the words to explain to her. i feel its just sticking the knife in as shes upset that he isnt answering any messages. in hindsight i've also realised that when they first started seeing each other. his youngest childs mother also said over the phone that my friend overheard that she is taking him to court to stop him having his boy and called him an abuser, and recently he has had police speak to him about only having supervised visits with children. (asking a family member who is quite high up in social servicea, who said police dont usually inform people of this unless its court ordered as part of court proceedings) she also said something along the lined of you dont see your daughter because (named daughters mum) doesnt trust you with her and he needs to stop going after younger women/girls, who dont know better.
i really dont know how to approach this with my friend. Or what to do if he comes back, now he knows i know.