Feeling abandoned

I am new to this site and thought some helpful tips from other women might put into perspective what I am dealing with. I have been with my boyfriend for 2 years, we do not officially live together but he’s at my house 95% of the time. Things go really really good or really REALLY bad. He’s never been physically abusive but is very controlling and manipulative. This past Friday I had surgery to remove a suspicious ovarian tumor. He elected not to come to the hospital due to work and my family was going to be there so he didn’t see a need in it. I tried to be understanding knowing I wouldn’t be alone, but it still sucked. Now it’s monday and I maybe heard from him twice over the weekend and it was to return my phone calls to him. He hasn’t check on me, helped me out any (I’m a single mom, not his child) which has resulted in me having to stay at my parents house. The last thing he said to me was “just because you got cut on doesn’t mean I can’t enjoy my weekend” as he was having a cookout with friends while I was laid up barely able to get out of the bed. Am I being selfish? Expecting him to care? He has somehow made me feel guilty like I was a burden to HIS plans, but all I can think is what if i didn’t have my parents? I’d literally be alone. Any advice?