Search Results: hanging out with friends friendship

Let me elaborate a little. Now, I know of course you want your SO and your friends to get along, and hanging out altogether shouldn't be an issue. But I've PERSONALLY always been of the mind that you just don't hang out with your friends SO's privately or talk to them privately. It feels like a line that shouldn't be crossed to me.
Well I have a close friend who views this a little differentially. She sees no issue with it if we all trust one another. We both recently met guys and have started seeing them, however both of us were friends with each guy before we really started "seeing" them if you will. We met her current SO first, nice guy, and again, we were all friends before they started getting serious. Even before they officially announced anything, I could TELL it seemed to be getting serious so I backed off and do not and have not spoken with him privately outside of what's said in front of said friend or in a group chat that she is in.

Now fast forward to meeting my SO. Again, we met mine at the same time and were friends with him before anything started. From the start he was definitely kinda seeking me out, talking to me more than her and what not so it wasn't really a surprise when we started seeing one another however, unlike the boundary I have myself not to cross... she doesn't really seem to have issue with trying to seek him out alone to hang out with or talk to privately. To my understanding my SO is not really receptive to it. Doesn't hang out with her when she offers, and it's hit or miss if he even responds to her when she tries to message him. Not that I've pressed for details, but they've both vaguely mentioned it here or there.

I don't want to be "controlling" or "toxic" or seem like I'm trying to commander their friendships, but I just am unsure if I'm the one with the issue or if there really is something weird about this.

I have recently been hanging out a lot with a guy in my friendship group. I have started to develop a crush on him. He got out of a 2 year relationship 10 months ago. We are both 21. We got in a play fight in the middle of the street when we were both drunk. And he buys me all my drinks. Ask me if I am getting with whoever I talk to when we are out together. Strangers think we are together.

Our friend is trying to set him up with different people and every time I ask him about it he tells me he isn't interested. I invited him to a party and I got told by him that 2 different people liked him but that he was interested in them. And he was being weird the whole night. Staring at me a lot, being really awkward, looking for me and moving closer to me. I went home for 2 days and when I got back, we hung out and he told me that he was going on a date with this girl. This starts to piss me off. Which I think is unfair. He doesn't owe me anything and I'm just upset because I feel rejected. So I decided to block him for a bit, till I get over this and we can just be friends again. I don't want to be mean to him because I'm angry. So, I think sometime without seeing or hearing from him will help.

Am I wrong for blocking him?