Bonni-mor
Sending you a hug as well ((())). I would honestly try to take the high road on this. I know he hurt you, but you can thank him for the offer and politely decline. You need not offer any more information than that. If he presses You can add that you have ‘moved on’. Then if he still persists, block his calls and texts.
You are not a failure and you can go back and pick up the missed classes. Life sometimes has us change a path for a reason (or dance a different step). The important thing is to move forward and finish your classes. But you did amazingly under the circumstances.