Help me reason. I'm I wrong or right

I'm in this new/baby relationship, Meaning we are still getting to know each other. We were supposed to and planned to hang out last Saturday. With these new regulations it meant I could only see him that day or next week. We planned and agreed on Sart. When Saturday came he calls me at like 1pm saying hes a little busy, change of plans, we have to hang out with his friends and he would call me later so I can join them. I reluctantly agreed but then he never called again. Until Monday hes like sorry about Saturday. It was my best friend's birthday (who happens to be a girl) and I was so busy I couldn't call you again but I wanted you to come hang out with us. He then sent me the birthday party photos I guess for proof.

But then I was just like happy Belated birthday to her.

Was it hard to call and cancel instead of making me wait? I don't know if I'm overreacting but I'm reasoning like he doesn't care about me that much. If you would bail at least let me know. I told him this and I'm just losing my interest in him although I do miss him alot. I was starting to fall him which doesn't come that easy for me to click with someone.

FF hes been calling and texting I'm ignoring cuz I don't know if his apology is sincere or he just doesn't care. I guess part of me is trying to say I can be busy too🙄🙄 but I miss him.

How can I handle this wisely?