In my opinion, if you’re breaking up with someone and you’re in a situation where you see them on an almost daily basis, you should break up with them a day before you know you won’t see them. For example, if you’re in school do it on a Friday so they don’t have to see you the next day and they don’t skip school and it interferes with their studies. I’ve been on the receiving end of that and I skipped school for a few days before going back and facing him, right before a weekend seems fair and considerate because it gives them time to come to terms with it and cope depending on their reaction. Idk, just my thoughts