I [24F] ended things with FWB [26M] and now I miss my friend.

We'd been doing this for about 8 months and I caught feelings, things appeared to be moving in a direction they weren't (a combination of bad communication on my part and mixed signals on his). I figured out that I wanted more in the future with him and asked him if he wanted the same but he wanted things to remain as they were. So I said goodbye and that I needed space to heal. We ended on good terms with the door open.

The problem is that now I've made a clean break from him and had my pity party, I realise that I really miss his friendship and feel kind of devastated because I'm pretty sure I misjudged genuine feelings of friendship for something more. I miss our FWB dynamic. Needless to say I'm in a pickle, do I back track completely and try to reestablish our prior arrangement now that I know where I stand, do I settle for being his friend or do I stay away?

tl;dr : Ended things with FWB because I caught feelings, now realise that those feelings were misjudged on my part, and now really miss my friend.