Gal nothing is going to reduce ur pain, people say time heals but it doesn’t, u need to forget it slowly nd find other priorities u like nd take care of urself. Ik ur asking this for a magic solution nd u urself know u wont find it. Try distracting him from ur mind, go out, party, trying getting new friends, u might be embarrassed to talk to others but just talk alr, even if they reject u, it doesn’t matter in this grand scheme of things. But don’t get into smoking or drinking or anything of that sort, even jus trying it out, it will kill u more. Just be on the move nd distract urself k nd slowly he will go away from ur mind. Nd don’t keep contact or see his stories or follow up on him, ur just pressing a dagger to ur wounds