What would you guys do?

So I was recently in the most toxic relationship ever with a devil worshiper... (noooo I didn’t know until 2 months in, by that time I cared too much to leave him) of course in the beginning everything was perfect it was like I found my soulmate he put my puzzle together he was the missing piece!!

But then i started noticing changes he was putting in effort and I didn’t want to lose so I was putting in 100% while he had his feet kicked back. When I say I did everything for his boy I took him in made sure he was fed gave him a place to stay I didn’t even think about myself I just wanted him to be okay. One time I bought him food I told him I wasn’t hungry but deep down inside I’ve been fasting for like a week due to my dad calling me fat. I felt like shit I didn’t have nobody to talk to he treated me any type of way because he knew I would fall every time. I want him out of my head I want to forget about him completely. But it’s so hard.

So where I’m from it’s pretty small everybody knows everybody.. I happen to find me a nice boy best friend he’s really sweet and we grew so close, we fell off but now I thought everything was cool I guess not he knows my ex and idk what to do.

What would you do? I’m really close to him 😔