Missing a fwb

So it's been a month since I last spoke to my fwb, we had a big falling out and he wants nothing to do with me, so we stopped talking. I caught feelings for him before all that happened and even though he mucked me about a lot and messed with my head, I miss him, is that weird? What can I do to forget about him and start feeling like me again? I guarantee he's already forgotten who I am. Help?!