Do you think it’s possible to still find comfort in someone that cheated on you?

So I have a bunch of things going on from family problems to relationship problems. I live in a toxic household where there’s abuse. I usually talk to my boyfriend so he can make me feel better and stuff but I found out he cheated... I don’t feel the same way about him anymore but every time something happens with my family or something bad in general happens, he’s always there to comfort me and talk to me. Do you think it’s okay for him to be my safe haven even after he cheated? Is it good for my mental health or something? PS- We are not together anymore