Mentally exhausted

So basically I like/liked my fwb, thing is I liked him but I was unsure of being in a actual relationship. Anyway, he did something that upset me I’m not going to get into it but now I don’t want to continue our fwb, because I don’t want to have sex and catch more feels if it’s someone who I know I won’t be able to see myself in a relationship with.

After what he did we spoke on the phone and talked I told him I don’t want to be a fwb anymore and I have to think about just being friends.

My dilemma is now, should I cut it off entirely? Because we do get along well and I like hanging out but after this I know I don’t want to become anything more. But I don’t know if I could just have a platonic friendship with someone like he suggested, just because I like him then I will slowly lose feelings for him because I’ve come to realise we wouldn’t be good for each other in a relationship, but as friends maybe.

He doesn’t know I like him, and he questions why we couldn’t strictly be friends. I didn’t want to tell him but I said I need time to think. Should I tell him I’m hesitant to be just friends because I do like him but now because of what’s happened I know I don’t want it to go further, or should I just end it, no explanation.