Jealousy

Is anyone else out there very jealous when other girls talk to your man? All my past relationships were with mental abusers, liars and cheaters. This ONE chick keeps talking to my boyfriend and he says they’re just friends and what not, but I feel like she has feeling for him. He said if I ever got between him and his friends he’d end it between us and we’ve been dating over a year :/... the one message I was able to read that she sent him when she was supposedly “pissed” at him was “boiiiiiii ;-;”.... I actually hate seeing her name pop up and fear for the worst. He knows how I feel about it, I’ve already communicated with him but ya know men do what they want 🤷🏼‍♀️