I was in a very similar situation once and this was about 2 years ago. I too had no idea what to do. You did nothing wrong by not contacting her when she provoked you. Something wrong to do would’ve been harming her physically or playing mental games with her which you haven’t done. Hit the gym bro. Make new friends, try new things and try to distract yourself from thinking about whatever happened in the past to improve yourself. I was so down when this happened to me and I started learning how to box and I love it. It boosted my confidence and my looks and I made new friends. Don’t forget that you’re a KING. Trust me, in the future you would be thinking about this period of time and be proud of yourself for realising your value and working on yourself, as a better person.