<human>: Condense the text into a few key points

Hey!

Brief Background:

A girl (23F) and I were very good friends for about 5 months, and I started developing a crush on her. We started going out on dates, and even slept together. After sleeping together, she told me she had a boyfriend of 2 years. As you can imagine, I was devastated that she had lied to me and that we were not going to be together.

She briefly broke up with him to be me, and then went back with him. Since we attend the same school, whenever we saw each other, she would ignore me, etc. We went from being great friends, to almost being starngers over the course of one day.

After 8 months of no-contact, she emails me apologizing for "being brutal with me, ignoring me, and that it did not work out". She also said that she was writing to me "for reasons that she does not fully understand, and that she sincerely hopes I am doing well"

Why did she contacted me? I plan on keeping it NC, but I want to hear what you guys think, please.
<bot>: A friend I had a crush on, who I realized had a bf after sleeping together, completely erased me from her life. She emailed me 8 months later. Should I reply? Thanks!