<human>: Can you give me a shortened version of the text?

So almost 2 years ago I ended the longest term relationship of my life with.  Very difficult breakup, I was her first kiss, first boyfriend, all that.  For months I would receive nasty texts, always with an apology between 6-24 hours later.  Sometimes it would be begging to get back together, sometimes about how awful I was, but went on for 6 months.  Got a long e-mail asking to get back together 6 months post breakup, responded saying essentially "no"

Still, every two weeks or so, she reaches out for nothing at all, just minor conversation, but I get this sick feeling that she's trying to play the long game and just keep me nibbling here and there.  She even wanted to do a "post-mortem" which I stupidly agreed to 1.5 years post breakup, and claimed it wasn't a ploy to get back together, but it was obviously a date.

I just finished school yesterday, completing a long and emotional 8 year journey, that she was there for when I went back after a few years off.  She e-mailed me last night around 11 to send me pictures of my first days of school at community college and my university, and it just made me feel sick.  How should I respond?  I'm seeing someone else with a lot of potential right now, and I don't need this shit in my life to deal with.  Problem is, even if she *is* trying to get me back, she has plausible deniability, so she can make me sound like I'm grasping at straws.  What's the play here?  No response?  Short and curt?  Open a dialogue?
<bot>: Been broken up almost two years, but ex still contacts me from time to time and I feel like she's trying to get me back.  Sent sentimental photos last night and I don't know how to respond.