I'm sorry

I'm sorry. I know this is supposed to be a men's group only.... But I'm a woman and I'm desperate.... I have no one that I can talk to and I need a man's perspective... Is it cheating for married man to talk to other women via messaging apps? In a sexual manner including dick pics on his part? I'm trying to figure out if I am overthinking/ overreacting.... Again I'm sorry for invading the men's group but I have no one else to turn to for advice or perspective on this...