Me ‘f/42’ and bf ‘41’ have been together for 11 years. We were arguing on my Sunday off and he took off early in the morning and I tracked his location going from bar to bar all over town. He didn’t get home til 11 pm. I asked him if he met anyone or did anything worth mentioning happened. Well he lied and said he sat alone all day and night and it was just avoid arguing with me. I later find a message on his phone from a girl saying “good luck and sorry for talking your ear off”. Long story short, he trickle truthed until I found out he was talking to her for a while and sharing cocaine with her. He insists it was nothing special and I know we sometimes engage in party favors but lying, first red flag. Second red flag and maybe this is just me, but is doing cocaine with a stranger and totally leaving this out completely not acceptable? I mean I’m not against drug use occasional but with a random girl? Seems suspicious. Sharing drugs with a strange woman while I’m at home alone and bullshitting me…. What the fuck? I like to party but it seems very intimate and inappropriate. We have been arguing about if this is a big deal or not. I’m more angry about the omission but also drinking and sharing drugs? Gives me a weird feeling.