My bf makes plans without asking me first?

He always makes plans with his friend without asking me first. It drives me insane... I talked to him before about it. I told him I might not want to go, or may want to hang out with my friends every once in a while. Our friends live pretty far apart, so it's hard for us all to hang out. He listened for a little while, but started doing it again. Lately I have been only hanging out with his friends and doing things I don't want to do because of i. If I suggest they have a boys night and me and my friends have a girls night, he tells me he doesn't want to or that his best friend is bringing some girl he's hooking up with. If I don't want to go, he gets upset. I tried compromising, but he isn't consulting me. What should I do? All I asked was ask me if I want to go before you make plans that involve both of us.
My bf makes plans without asking me first?
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