I have the worst luck when it comes to relationships

I have the worst luck when it comes to relationships. I fell in love with a guy I had had a crush on in college. Everything was great until I found out I was pregnant. When I told him he said kid wasn’t his bt still insisted I get an abortion. I dd becoz I wasn’t ready n having a kid with him wud hav been stressful. I loved him truely n thot he dd to. I still do bt he doesn’t care about me, he won’t even respond to my texts. I need to 4gt him n my bby cz no day goes by without regretting wat I dd. Can u help me in ways to move on. N a way to be more comfortable being alone b4 I cn go into another relationship. Help me in how to protect myslf from heartache in the nxt relationship bcz I’m slowly giving up on love