Would you be upset ?

Okay my boyfriend is a big gamer and he told me he specifically plays with all males. It doesn’t matter it’s video games for all I care I trust him. But they added him to the group chat of the “4” guys they play with and turns out two of them are actually other girls.

The only reason I even found this out is cause they added him to a snapchat group they are in. Of all 4 of them and it showed some girl pop up on his snap when we were watching a show together

We got in a huge fight cause he’s mad I don’t trust him and he’s not understanding ITS NOT ABOUT THAT. It’s about him hiding this from me when he was telling me the 4 “ fuys “ he plays with. It was obviously a lie if he talks to them or not. It’s the fact he hid that from me which has me questioning WHYYYYY would he have to hide that. Would this upset you? Thoughts.

Update- so I tried talking and he was yelling at me saying he doesn’t think it’s wrong to talk to them and okay with his friends and is completely over looking the fact oh what is wrong here and refuses to acknowledge why I feel the way I feel and he’s super angry tense and I know something is wrong here. I can feel it in my bones. Why get this upset? If nothing was going on why not just tell me about it in the first place.