Nothing but disappointed

So I was living with someone since January. He told me he would always be there for me, always be there for my unborn baby, and he'd always love me. I had a really bad reaction to some medication & asked him to take me to the hospital multiple time because I physically couldn't drive due to my pregnancy. He never did. I was placed in the hospital on a Thursday night/early Friday morning. I was having super high blood pressure issues & my ob doc induced me last Monday. The whole time I was in the hospital, my "boyfriend" didn't calk me, ask me how I was doing, never came to see me, nothing.  Well I found out after I got release that he had moved all his stuff outta the apartment and is already living with his new gf and her family. Also that he's been seeing & sleeping with multiple females for over a month. I am so angry that someone would do this bit also because I almost died, almost lost the baby, & he left me with $3500 worth of bills to pay. I have lost almost all of my possessions, lost my car, and he gave me something I have to take medication for the rest of my life for. I don't understand why people are so cruel! I always seem to find the worst people! I don't know how I'm going to get by, take care of a baby, and trust people ever again.