My boyfriend tells his mom about our sex life?

Me and my boyfriend where having issues regarding our sex life that where really stressful. We where expressing our feelings about it and in the MIDDLE of the conversation, he gets up walks to her across the hall and TELLS her EVERYTHING!! Now I wonder if he’s done it before
I just lied there going wtf, he still doesn’t see the problem with it, he says it was comforting (ok I get that but if you can sleep with me you can talk to me ) I feel so hurt, betrayed and honestly GROSSED the fuck out , am I over reacting here?
My boyfriend tells his mom about our sex life?
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