Ex's bestfriend

Okay, so I broke up with someone 3 weeks ago ( i was with him for a year and a bit) and got with another person 4-5 days after. When i started talking to this new person I told my partner (my ex) and he didn't even care, i even showed him the messages and they got heated, but he didn't care. I was really upset for 3-4 months because I wad being completely ignored by my boyfriend and he never even messaged me, I'd go days without a message and was always upset and felt he didn't care about me. I hardly met up with him or spoke to him and I got really sad and would talk to my friend Teddy (who was also my ex's best friend) and he'd always say i would need to be nicer to him and stop being upset because he wasnt talking to me. Anyway I started talking to someone else and this person made me really happy (he still does) and then I spoke to my boyfriend and he told me I should follow my dreams (date the new person). So we broke up. But now Teddy doesn't even talk to me anymore and he said i was in the wrong even though i used to explain to him why i was upset. It's sad because i feel I've lost a really good friend because we used to laugh and joke but now he just degrades me and makes me feel lower and worse. Thank fully I've got my new man who always makes sure im happy which im really grateful about, but im just wondering what people think I should do about the teddy thing because i still want to be friends with him???