Am I crazy?!!?

My ex left a year ago my daughter was 6 months he left to his country a month later got with a woman that was pregnant from someone else at the time, took care of her 3 children n newborn told me he wanted nothing to do with us when he would fight with his woman bc they’re toxic too he would get mad at me too for no reason. They’re now broken up but I’m sure they’ll get back together again like always but he’s telling me he feels bad wants to go find her n get back w her n is thinking negative n I’m over here giving him advice telling him to move on and learn to love being alone to heal and be alone for sometime if he left us bc we were toxic why would he want to go be in another toxic relationship. He said he can’t believe the person he once hurt Is giving him advice. I’m 19 n he’s 26 his girl is 24. 🙃 Idk if I should even be giving him advice but I hate seeing people hurt everyone always comes to me to talk. When I was at my lowest I had no one to talk to I don’t want anyone to feel like I was so depressed and alone. 🥺💙 i learned to be alone and happy though after I got over him found out I had herpes lost my job I’m slowly getting better not completely there yet but I’m really happy now even if life isn’t the best I just don’t feel any sadness anymore and that’s a start.!

O yeah also since he left he hasn’t sent a penny.