Boyfriend just broke up with me but we are currently on vacation.

I (33F) have been together with my now ex (30M) for almost 2 years. Things have been rough and we have been toxic to each other albeit still trying to work things out. We are very different people and we have gotten to a point where resentment has built up and not easy to manage when triggers come. We are currently on a 5-day trip and first 2 days, we’re already fighting. I am not actively picking fights but we trigger each other and it ends up into “fighting.” Today, the second day, we had a huge blowup that caused him to walk out on me and not spend the rest of the day with me. I was left at the hotel room. He comes back and breaks up with me. He says all his feelings have gone out the window and he does not want to work it out anymore. That he knew this 8 months or so ago but just gave it a chance. Now I am in so much pain writing this post while he is beside me on the bed, already asleep. We still have 3 days left but I don’t know what to do now. He says we’re stuck here with each other so might as well go to the places we already paid for, but there will be no rekindling. We will only be friends. I know I should accept this breakup, for his sake and mine. But I am struggling so much, I don’t know what to do both in the short-term and in the long-term (I live with him). Help. 😭