MY BABY DADDY WANTS ME BACK AFTER HE REJECTED ME AND OUR BABY.

Good morning Zambian stories
Three years ago I was dating this guy and I became pregnant for him we dated for 2 years and after I fell pregnant he broke up with me. He came home and paid for the damages but told my parents he only wanted the child and he was never going to marry me. I was hurt by this because I didn’t expect him to do such a thing to me but I accepted it and I moved on with my life. He then started dating someone else. My pregnancy was complicated because I was stressed. Eight months later, I had my baby and it wasn’t a normal birth. I went through so much pain and he never came to take responsibility.
I fell into depression because I would see him post his girlfriend on social media confessing his love for her, my relationship with him was known and so each time he posted pictures of him and his girlfriend on social media, people would screenshot and send it to me. I lost weight and I didn’t even have a job. My family was there for me and they helped me take care of my child. He never came to claim my child until when my child was a year and some months old.
I finally managed to get back on my feet, I started a business And even met someone else.
Recently my baby daddy has been coming to see his child and he’s been telling me he wants me back. He has been begging me to forgive him. I heard that the girlfriend was cheating on him and he even lost his job. Hearing this made me happy because he made me go through so much pain and I can never take him back.
AM I A BAD PERSON FOR BEING HAPPY ABOUT HIS CURRENT CONDITION?