And started dating some other guy in September.
I texted her happy thanksgiving and we started chatting again
I want you to be happy and see your current relationship thru, but if anything does happen, know that I would always want to give it another shot, because I will always love you no matter what.
I'm still confused as to why she keeps reaching out to me like this
She is not reaching out to you. You are not confused, I don't think your ex is manipulating or maybe she is/was, but it's rubbed off onto you as well.
You found out she had a boyfriend and you got jealous, didn't like it, nothing to do with her at all, after all you "are" still in love with your ex, you gave this girl curry, treated her wrong, you are not trying to make things right, nor get back with her, you are trying to get her now boyfriend out of the picture and then what? You'll dump her again?
Leave her alone, she has a boyfriend, you screwed up, leave her alone.