My friends ghosted me after starting a new relationship

Cora

Okay first I didn’t know exactly where to put this but because it includes my boyfriend I’ll put it here. So I’ve been in a new relationship about two months old and me and him have been hanging out more. I’m more of an antisocial person so when my friends go out in giant groups I always tend to decline going and I have always been like this but I hang out with him constantly because he is someone I feel comfortable around. And where my friends will go to bars and clubs he takes me to the bowling alley to play pool. I’ve invited them to join but they always say no. Recently one of my friends deleted me off everything and another wouldn’t talk to me. They never told me why and when I finally got one to sit down and talk to me she demanded an apology because I’ve changed and selfish for being with him (her words not mine). They were also upset because I had to go to quarantine and so did one of my friends but instead of staying on campus I went home with him while she stayed here. Now she’s upset that I left her alone here even though we weren’t in the same room and couldn’t see each other. And I don’t feel like I should apologize for any of this but now I’m not sure because they keep telling me to