my friends toxic bf.

So to keep to simple I've dated this friend three times ik crazy but we are good friends obvi, she tells me about her bf and apparently, he was texting a girl that liked him and saying he missed her when he told my friend he was showering! Hes my biggest opp she cheated on me with him but the other night he blocked her and made her take his name out of her bio just bc she didn't want to vent to him which is honestly crazy imo i hate him sm i wish he would be nicer to her and she has to ask to hangout with are other friend because "He doesnt want her to ignore him" Like oh well bud shes hanging out with her bsf suck it up you baby god hes so controlling and weird i could say sm more but its private.. anyways they also argue a bunch and he makes her cry a lot and says stuff like 'you cheated on me!'' And "This relationship means nothing to you!" when she lit ignores us (friend group) for him and post about him ALL THE TIME. Ugh i wish they would break up SAVE ME.