im a terrible person

let me give you a little context on my relationship, I've been with my partner for quite a while and we have a child together, but it hasn't been the best relationship, he yells at me until I cry, calls me a c*nt all the time, tells me to fuck off, to go fuck myself, to shut the fuck up and more stuff like that. he's even driven at me with his car when he was mad at me.

so recently my best friend has told me he likes me and he's helped me through all the times this has happened and I can't help but have feelings for him to. he's been amazing to me always making sure I'm ok and helps me when I feel like shit. and unfortunately I have started to get feelings back. because he's always been able to cheer me up when situations happen with my partner

I would never cheat and would never go for him, so this isn't a post about going for someone else, but I just want to know how to get rid of these feelings? has anybody else had a situation where they had to force themself not to like someone and regain feelings back for someone else