I think my boyfriend is becoming controlling and possibly stalking me but i dont have proof. im stuck on what i should do

I’ve only been dating my boyfriend for about four months. He’s a pretty popular guy in general, and even before we started dating, pretty much everyone knew who he was because of the sport he plays. I’m trying to keep this vague because I obviously don’t want him finding this post and knowing it’s about him. There have been a lot of little things that have started making me uncomfortable.

For one, he makes these jokes about cheating that I really don’t find funny anymore. He’ll say stuff like, “If you ever cheated on me, I’d literally kill you, kill him, and then kill myself.” I could understand saying something like that once as a stupid joke, but he brings it up pretty frequently. Like, at least once a week there’s some variation of it. And what makes it even weirder to me is that he’s had girls around him basically constantly since middle school. He’s always either had a girlfriend or been seeing someone casually, and even now there are tons of girls following him and messaging him. Meanwhile, I’ve literally never given him a reason to think I’m cheating.

He’s also gotten really jealous about my social media. My Instagram is private, and he actually made me private it because he was jealous. If I post a story, he’ll sometimes start an argument and ask why I’m posting it, who the pictures are for, why I can’t just send them to him instead, etc. It feels like he assumes anything I post is specifically for other guys’ attention. Meanwhile, there are girls constantly in his DMs and apparently that’s fine :)

The physical stuff is probably what bothers me the most. He manhandles me a lot. I’ve tried talking to him about it, but he genuinely seems like he doesn’t understand why I have a problem with it.

For example, if he wants to go somewhere and I’m standing in the way, instead of just saying “hey, can you move?” he’ll physically pick me up and move me somewhere else. And during arguments, there have been multiple times where he’s literally picked me up and put me somewhere I can’t get down from. He’s a lot taller than me, so obviously I can’t exactly just get myself down. I could maybe understand doing something stupid like that once as a joke, but he has done it multiple times, including during arguments, and it feels really demeaning. I’ve told him I don’t like it, but it keeps happening.

There was also an incident with Instagram that really freaked me out. We were arguing, so I blocked his account. Obviously when I blocked him, Instagram removed all the accounts connected to him from my followers/following. I literally lost NINE followers because of it. I obviously added him back afterward, but I haven’t asked him about the other eight accounts because I don’t even know how to approach that without sounding paranoid.

I also feel like he might somehow be tracking me. I don’t have proof, which is why I haven’t accused him of anything, but there have been SO many weird situations. For example, I’ll tell him I’m at one place, but maybe I also went to a couple other places beforehand because I was shopping or running errands. I don’t tell him every single store I’m going to because why would I? Sometimes I’ll literally go to 10 different stores and I’m not going to give someone a detailed itinerary of my day.But somehow he’ll know when I’m leaving things out.He’ll say stuff like, “Oh, you went here too, didn’t you?” or “I know you went there.” And when I ask him how he knows, he just kind of avoids the question or gives me some vague answer.

One time we weren’t even Facetiming, just talking on the phone, and before hanging up he said, “Have fun at _” I had NEVER told him I was going there. I hadn’t mentioned the place at all. This has happened multiple times where he’ll casually mention exactly where I am or where I’m going even though I never told him. Another time we got into an argument and he brought up the fact that I hadn’t spent the night at my own place the night before but I literally hadn’t told him that. i had just gone to my friend’s house (she’s a girl btw) ended up falling asleep there, and basically had a sleepover. But how the did he even know I wasn’t home???

I genuinely don’t understand how he would know some of these things unless someone is telling him, he’s tracking my location somehow, or he’s somehow getting access to my accounts/phone.I know there could be completely innocent explanations for some of this, and maybe I’m being paranoid. He is my first ever bf so idk whats normal in a relationship. i really really like him i want to make it work. any advice is welcome