What would you do in this situation?

Alright bro, i had the same thing happen to me. Its like you never know whats gunna happen next. They'll come back to you for a while (and that's usually after a breakup) because they're lonely and sense she knew you used to like her, she still might think you do. So at this point for me, I just dropped it and moved onto someone else. However, I told her this in a non-hateful way so it wouldn't get ripped on. And now, I've found other people and it feels so much nicer to no longer have any restrictions and be a free man. Good luck!