You’re both incredibly problematic. His post seemed totally normal and he used some dumbass mind game to have a happy family with you while you simply expected for him to be ok with you exploring your sexuality with other people. Only problem was that you were getting fairly romantic with one person, you were emotionally cheating which is usually off limits for open couples. Albeit he’s a dickhead for trying to make you jealous but it obviously worked because you were ok with him fucking other girls so long as they weren’t as pretty as you. This is insane. You’re both insane.