He never cares how I feel

So me & my “ex” whatever you want to call it. Broke up maybe in the beginning of the month but we talked it out & he told me he doesn’t want me to leave him in the past he wanted to get back together right away but I said no we can still do relationship things but I just want to see how things go first & if they go smoothly we can make it official. But we still have sex, tlk everyday & go on dates etc. his bday is next month and today I was tlking to him about it (were going to a resort 3 hrs away). He invited 11+ ppl and I’m very introverted so I asked who are the ppl and on the list was his cousin and her 2 friends. I told him I didn’t like that her friends were coming , it made me uncomfortable because he’s too into them. He’s way too friendly with them & always know their moves or what they are up to and I don’t like that. He’s always tlking abt them which is weird. He stopped now but before it was too much. I didn’t even know them but it’s like I knew them through him. He says oh they are like his fam ... literally EVERYONE is like his “fam” & it’s so irritating. Anyways he didn’t care how I felt which made me mad because I’ve cut off 2 guys who were my friends because it made HIM uncomfortable. So I thought it wasn’t fair at all. He told me I’m selfish & I only care abt myself. He told me I’m wrong because I told him he never cares how tf I feel. & he knows tht I never wanted to be around them because he seemed so obsessive everytime he would tlk abt them. He invited me out with them before and I said no. They are always half naked and they always twerking all over the place & just doing too much for me. But anyways he told me don’t come because I’m gonna act distant and have a attitude and how it’s his day not mine so I have no say. He told me that he’s just worried abt having fun & im worried abt bitches. Then I brought up my 2 guy friends and he said it’s not the same thing. I forgot we’re not in a relationship so ofc I won’t matter but it’s like I want to be there for him on his day but it seems like he rlly just doesn’t care and I don’t want to put myself in a awkward position. Also he told me I have to have manners but I told him I don’t need to have shit. His cousin NEVER says anything to me. I would be smiling and greet her and she looks at me with a straight face and walks away. She did this multiple times and he just sticks up for her and says that’s just how she is but when I’m quiet or I simply don’t want to tlk it’s because I have a attitude and he would get so mad and argue with me. It just doesn’t make sense. He’s always sticking up for everyone else or has an excuse for everyone else but when it’s me ... nothing . Ever. I realized we’re not together so why should I trip but still i wouldn’t of put him in a situation where he didn’t want to be around someone. ( I dnt mind his cousin that’s his actual fam.. whatever) but I just feel stupid because I always try to make him feel comfortable but when it’s me I literally don’t matter. Apart of me just says to suck it up & sleep in a different room and not with him & apart of me just says don’t even go. He also says he knew her friends before me but I knew the 2 guy friends I cut off before him as well

- although he’s an ex the whole purpose of this was to see how things would go so we can get back into a relationship