Relationships

My friend with benefit ( somewhat a bf) ended our sutuationship but why is he getting mad when he sees I have moved on?

Me and him have been dealing roughly 3 months. It started off a sex thing and I was cool with other it. He wanted to do relationship stuff like going on dates like out to eat , holding hands , cuddling and stuff like that. I was hesitant but I went along with it. I meet his kids ( we went out on family outings together) and his close family members. He like public affection like holding hands in public but I don't. He thinks I'm ashamed of him but I told him I'm not I just don't care for it. We had some bad breaks and he decided to end us. I didn't agree but the day he did it at my house , we went sleep together right after. We didn't have sex he just held me and went to sleep. We also work together. 😑 So the other day he seen a guy in my car and as soon as the guy left , my "friend" came to me. He asked me what was going on and something else. I told him not to worry bout it then I walked out. He grab my belt from the back and pull me back. I told him to let me go but he wouldn't. We talked and I walked out but he pulled me again. I playfully choked him and he let me go. Later that day he came to my car while the boy was sitting in there. He opened my door and playfully chocked me. I got out my car and chased him. I hit him and stuff and he smiled and hit my butt. Weird I know. We somewhat good but it's weird as to why he doing all this when he ended us and blocked me on his phone. Why can't he accept the fact I'm moving on? I don't trip when I see him dealing with othe girls but he has a fit when he see me doing it. What's going on with him? His friends say I done f-ked up his brain. Sorry for the long post. 😑
My friend with benefit ( somewhat a bf) ended our sutuationship but why is he getting mad when he sees I have moved on?
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