Am I over reacting?

Anastasia
This weekend my husband and I went camping with a group of friends. On Saturday I stayed back at the camp site while he went and got drunk with everyone else. Despite me calling and texting say that our son wanted him he stayed out drinking with a few of the other people. When half the group came back they were talking about how this girl was grinding up against him. I gave him til today to come clean about it but he never did. I finally brought it up and said I am glad a night of fun was worth our marriage. I have a serious issue with trust (not just him everyone even my mom). Am I over reacting by wanting to call it quits?