Advice please

Lydia

So my ex broke up with me just 3 days ago and is already trying to start the friend process. I feel like I’m ready to be friends or at least I really want to be friends. It’s just really really hard because whenever I see him my brain just goes 💕💕💕 and idk how to stop it and get over it. So basically does anyone have any advice for being friends with an ex and not feeling those lovey dovey feels whenever you see them? I feel like I’m going crazy.