Boyfriend snapchat

My boyfriend snapchats this girl. They are friends. She has a boyfriend but then talking bothers me. I trust my boyfriend but not her. Just something about her. But how do I ask him to stop talking to her. It bothers me. Like I think about it at least once a day. I try not to think about it but I can’t not. I don’t wAnt to say he can’t have friends. The other people he talks to I don’t care about. Just this one girl... what do I say to him? They have a 46 day streak so they talk at least everyday. Idk why it bothers me so much but it does. And no he isn’t cheating and he never has so don’t even say that’s what it sounds like.... that’s not what this is.

P.s. we are 22 and 23. Just put that out there because this kinda sounds childish 🤷🏼‍♀️