<human>: I don't want to go into too many details because even though this is a throw away, the situation is specific enough that it may be recognized by my ex, who frequents this subreddit.

Long story short, I got hurt very bad by this person and they gave me a very convincing spiel about wanting to do anything and everything to make it right.  I bought into it because I was (and still sort of am) convinced that there was something in the relationship worth trying to salvage.  A month went by with little to no progress or effort, so I contacted the person to see why things felt like they were cooling off.  They took that as an opportunity to break free completely and a few weeks later, they did me the "courtesy" of letting me know they were going to be seeing someone new.

I'm not still pining for this person.  Despite the feeling that there was something really, really good there I realize that we weren't working.  However, I can't seem to shake the frustration and hurt about how things ended.  

Recently, I came across them posting from their new SO's place and it set me completely on edge.  I had some sort of panic attack and after talking to a few friends, opted to burn the bridge completely.  That was a week ago and for the life of me, I can't seem to get this person out of my head for five fucking minutes.  I wonder if they've noticed that I'm not on their radar anymore.  I wonder if they even care.  I wonder and then I think about how the whole thing played out and then I get mad at myself for wondering because I have no legitimate reason to care about this person anymore.

Provide a brief overview of the text.
<bot>: Broke up with someone who hurt me, they moved on really quick and it hurts, but I'm more upset that it hurts than anything else.