do girls with boyfriends need to hang out or talk to other guys

rhi

so i’m dating this guy and this girl hangs out with his friend and she has a boyfriend and i didn’t realize she had a boyfriend bc she always talks to guys and she even tried talking to my boyfriend but he tells me he’s not i to her and i believe him cuz they don’t text. But what i don’t get id like it seems like she likes my boyfriend and his friend bc she takes pictures of both of them and barley ever posts her boyfriend so i’m kind confused . I also feel bad for her boyfriend bc she always touches other guys so i’m like no you can’t talk to MY boyfriend bc i see how she is with other guys but idkk