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Why the hell did your parents say that? wtf? No. You're not.
But you should definitely calm down and decide what you want.
If you still love him, stay by his side, respect his wishes to date the other girl, but keep seeing him. Make sure he's sees you as often as possible whenever you are in a good place and happy, so that way he associates only happy things with you. I'm not sure if this is okay (run it by his doctor), but you could also tell him stories of your fun times together.
If you aren't sure though, then there's your answer.0THIS IS NOT RELEVANT ANYMORE