What would you do ?

My boyfriend met a new friend & said friend is like a pimp or something basically he has ally of females around him. Well I went on his phone just to scroll through insta when I unlocked his phone his what's app was open & his "friend" told him he was drinking & said to my boyf "you ain't got noooo bitches call them" my boyfriend replies & says "I can't not w her (me) next to me" now when I seen that I just felt like he said that just to sound cool or whatever but my boyf is very upfront esp when it comes to other men so I'm confused why he would say that. I want to leave bc I told him if I see any bs I'm not doing any talking I'm just leaving. Do you think this is enough evidence to leave. ?

@kierston he is saying that he basically has side chicks & cant call them cause I'm right there.