Guy's Behavior

I need thoughts?

My boyfriend says he finds peace at dunkin, because he's been going there and flirts with this woman that works there, he told me I'm not his peace, dunkin is his peace, but I've been supportive, loving, clingy (how I express love) clean and cook for him and it's not enough, I catch him flirting and when I tell him please stop he says you can't tell me what to do because you don't own me, which I don't but you get into a relationship bc you learn the mature way to be with someone and give up a lot for the person you with, but I feel as tho he finds peace there because he isn't in a relationship with her and if he was that output he gives out would change. Do you think that's right or am I just not understanding properly
I need thoughts?
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