Is AUTHOR wrong in the post ? POST : Throwaway in case anyone I know is on here.

I'm currently in college and I dated my ex back in junior year high school. I had asked her out early in the school year, and the relationship lasted a little past our school's homecoming (2 months). She was always adamant about being honest with each other, so when she broke up with me saying she just needed a break, I trusted her, and believed we'd get back together.

Move forward a few weeks, and I got a text along the lines of "I think I want to get back together, but I'm not certain". Even then as I was blindly wanting to get back together with her, I knew that the text seemed like the kind of thing that could be setting me up for failure. After a weekend of silence from her, she says that she didn't want to get back together. I asked why, and she said that she didn't want to date someone who wasn't a practicing Christian, something that she knew I wasn't for years. I asked why it was suddenly a problem, and she said that it was why she dumped me, and that she'd been thinking about breaking up for several weeks before doing it. That time included our homecoming, a night that I once thought was the best night of my life. When I asked why she never told me this when she was preaching honesty, she said something like "I didn't want you to think you didn't have a chance with me". 

Over the next few months, I received texts like "I miss __, __, and __ from when we were together", "seeing other couples makes me wish we were dating again", and eventually another "I think I want to get back together", while switching between not minding if I'm not religious, and it being a deal breaker. She knew that I still wasn't over her, but she sent those texts and got upset if I mirrored the sentiments. After all that, I was finally done, but she wasn't; she insisted on going to junior prom together, despite saying that she had zero desire to date me again just a few days earlier, amongst other things. 

I eventually realized she was only making my depression worse, but by this point in time, she was a part of my friend group. Everyone seemed happy to have her there, so I never told anyone from that friend group about what she put me through. Last semester, many of my college friends (none went to my high school) had me talk about this relationship. They said that I should cut her from my life entirely, so I deleted her on social media, her number, and the conversation history.

A few days ago, I get a text from her questioning if I'd deleted her from Facebook, and forgetting I'd deleted her number too, asked who I was talking to, which upset her. She asked why I did it and I told her she had tried to build a friendship on lies and empty promises, that the friendship was toxic to me, and after a time it just collapsed, plus she wasn't making any effort to stay friends. She hasn't responded since, and I'm feeling like I was too harsh. So, AITA?