Got angry at my friend for no reason

This is probably not OCD but I have made a post about this guy. So long story short, last week I texted him asking how his day went with his mom and all that. So he then texts me “how was your day” and I said good and I said “yours” and he said “tough” “I’m going to bed ttyl “ I asked what happened and what’s wrong and never get a response. Next day at work he’s not talking to me so I thought to myself to just wait and give him space. Hours later I eventually ask him at work if he was okay and he said he’ll talk to me after work. Never does. Still never talks to me. The next day is Sunday and he still never texts me so I continue getting ready for church and ended up staying hom and telling him “I’m staying home this Sunday” “I’m proud of you for getting baptized” still no answer until finally Monday night or Tuesday morning he responds with “THX” I come in to work today and my cousin (manager) says he asked her if (the other manager) was going to church tomorrow she tells him “she said no” and then my cousin says “did you ask Bree?” (That’s my name) and he says “I really don’t want to talk to her right now”) he asks my cousin will she go to church with him. I keep overthinking “what in the world did I do” I’m trying to figure out what happened. I feel crazy for wondering what happened for him to all of sudden do this. I just like him as a friend but now I’m starting to dislike him period and have permanently deleted our messages and blocked him today. I took my time and thought hard before blocking and deleting. Maybe he’ll talk to me maybe not but we’re adults and I’m trying to figure out what i did because I’m really confused

Basically, My best friends both remained close with my ex. Someone who completely broke me when we broke up. My friends know that. They remained friends with him, pretty close too. It’s always bothered me, even 3 years down the line because it’s something I would NEVER do to them. Ever. My best friend cancelled some plans we had, which was very unlike her. I asked why, she said she’s going on a walk with a friend. I was like fun! What friend? And she didn’t want to say, from that, I knew it was my ex. She then confirmed it to be my ex. It was clear I was annoyed. I’d had a shit day and that topped it off. She then cancelled the plan with him. I felt awful. I said no, just because I’m annoyed please don’t cancel. I said I’m not mad at you, I’m disappointed about the situation and the way things are. She was very understanding and said that she does not blame me for feeling upset about it. I asked her to please not cancel the plans because of me. She said she wanted to move it to another date anyways. Am I a bad friend for feeling annoyed/uncomfortable at the fact both of my best friends are close friends with my ex? It’s been 3 years and it still makes me SO uncomfortable.

Alright so basically i have major attachment and jealousy issues to the point where i don’t really have any friends because of how clingy i am. i currently have a boyfriend and im trying to be better at it by not asking him to always be with me and give him space when he needs it and not complain about it all the time when he hangs out with friends. I get even very jealous of his dogs and family, obviously ive not told him that but i really am. Today me and my boyfriend were hanging out together on a game when his sister joined, i tried to not say anything but then i got that really bad gut feeling that i was gonna cry about it and i felt so bad if i asked to play something else. So i told him calmly that if he wanted to play a game or hang out with her thats okay and he told me he wanted to be with the both of us so i just told him that i dont do well in groups, even with my own sisters im terrible at groups i get all weird and clingy. So then he got a bit upset because he thought i was upset about her so i told him that i wasnt and that its completely okay and that its his sister and i understand that. Now he’s currently frustrated at me while im silently upset. I dont know what to do i know what i feel is wrong but i cant help it. Ive talked to him about my issues alot with the clinginess and he said he doesn’t mind but then there was a time he told me to back off being clingy so i did and then he wanted back and its so frustrating and confusing i dont know what to do.