Girl who rejected me in HS messages me over 12 years later

This girl rejected me in hs and was pretty hurtful about the whole situation I walked away and never looked back. 10 years later we bumped into each other at a party and ended up drunkenly hooking up. I instantly regretted it. A couple of years later She found me on instagram and started constantly messaged me for 2years we seen or spoken to each other since high school. There’s a lot more I did t post this is already too long, she also sent videos of her self crying and says she’s now writing a book about me.

Icing on the cake She works as a couples therapist and marriage counsellor

She rejected me because I was overweight back then