Need advice

I had been with this guy for 2 years and it was the first serious relationship we were both ever in. I am so in love with him but he just doesn’t feel the same anymore. We ended things a couple months ago and he has been with multiple girls since and is currently with one that he wants to date. which i guess is good for him to be able to move on and be happy so quickly. we had hooked up a couple times since the break up. and one time we had unprotected sex and we found out not too long ago that i was pregnant. i told him and he instantly went straight to abortion because it would ruin his future and his parents would hate him. i have never felt so helpless. he would have never forgiven me if i kept the baby. so i went through with an abortion for the sake of us having a future together. i wanted him to be there for it but he was too busy on a date with this new girl. then i thought maybe the day after, he was going to be there and take care of me but he wasn’t. i want to believe him when he says he loves me, but i literally gave up a child for him and he still isn’t willing to give up this girl to give our relationship another try. what am i supposed to do?? he gets angry every time i try and leave so he can just be happy with her but how is it fair for me to wait around in his life for him to be done with this girl?? he claims he needs to love her and get his heartbroken by her so he can be with me again, but i think that’s bullshit. i love him and i have always pictured a future with him but now he is just hurting me and i don’t know what to do. please give me advice