I don’t have a problem with this but I feel he has already written me off. I mean h changed his fb relationship status and told me he “…just wants to be on his own” in an email response asking if this was over.
I don’t think he meant what he said about being in touch or just taking a break.
Perhaps the most objective thing to comment on is likely that he isn't sure how he really feels, but only that he is reacting quite decisively.
But this means that it's up to him whether or not he changes his mind, with absolutely no timeline to consider whether or not waiting for him to "come around" is a waste of time. Leaving with you a simple question being willing to wait whatever amount of time it takes for a possibility of him returning to you.
And perhaps most of all, whether or not deep in your heart, you may never forgive him for breaking up. If you retain such feelings, rekindling the relatioship will likely fail in time.