so my boyfriend had a girl best friend that he would party with, go to watch sunsets with, etc. (but he cut her off for me after realizing he would want me to cut off my guy best friend if the roles were switched. ) i recently found out when he was drunk and high at a party with her at her house, they fell asleep in the same bed together. I found out because I’m on his account and he told his friends. They didn’t do anything sexual just fell asleep while he was “f*cked up” in her bed. Is this considered cheating or no and should i be mad? Because i kind of am mad at him for that, and he didn’t tell me either he just said he fell asleep at their house, not that they were in the bed together. He told them if he told me it would f*ck with my head or something like that.

Also forgot to mention that she says she is “menphobic” and she’s bi. I’ve never met her