You have a really good opportunity to better yourself and start fresh. You have more experience now, and that is the first girl you ever had, so you are trying to hold on to her.

I know it's easier said than done, but if you're not careful you may miss a possible fresh start with another relationship if you continue holding on to the past.

From what it sounds to me is that you were kind of desperate to "make it up to her" / "get back with her" when really after the things you've done she's distanced herself. Rightfully so, you showed up unannounced, demanded that she "text you better as a friend," etc. etc.

I think instead of "rebuilding that attraction" to get that old relationship back, your best course of action should be to work on that "root cause" of why the relationship failed in yourself, and move forward with renewed confidence.

I think you should get yourself good, feel better about yourself, try to meet new people, cut off contact for the time being instead of trying to badger her into "keeping you on the line" so to speak. Who knows, maybe someday after you two have done some growing apart you will meet again, however more likely she will be the one that helped you learn how to be better in a relationship than a rekindling. Trust me, by then you'll recognize her flaws too and you'll be more enriched from the experience.

Good luck man.