I tried to not think about it but it bothers me?

I was messing around with wasn’t dating or anything just messing around and like I noticed last year 2023 around September he liked my son dad other baby’s mother pictures so I don't know her she don’t know me but she know of me and I know of her because of my sons dad I have no issues with her or anything. But when I noticed he liked her pics me messing with him it just bothered me so I decided to tell him I didn’t like that it made me feel a way I told him that’s my sons baby’s mother I don't know it just I feel a way when I see he not only like it he hearts the pics. He turned around and said oh ok he didn’t know so i noticed he stopped but I noticed when I’m not cool with him or he blocks me when he’s mad I notice he will go back to hearting her pics. But than I thought ok he’s doing that cause he’s mad at me. But I guess I’m wrong because I stopped messing with him when I noticed he went back to liking them. Not all some of her pics but ok I noticed so I didn’t say nothing just was happy he stopped talking to me. He ended up unblocking me bothering me I ignored him he than kept passing by my house than wrote me saying he’s coming back for me to come outside I didn’t want to but he wouldn’t leave so I ended up going outside. We spoke and slept with each other cause it’s been a long time but I notice 3 days later he hearted her pics again I didn’t say nothing and won’t, but I don’t get it if he’s doing that than why he keeps bothering me talking to me than? I feel betrayed why not just leave me alone like he literally did it 3 days later I feel like I don't know what’s his true intentions with me but I’m definitely going to ignore him for good and if he don’t leave from my house this time I’ll call the cops.
I tried to not think about it but it bothers me?
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