<human>: We dated for six months and she broke up with me three months ago. I discovered that she was seeing another person and probably doing so even before the breakup. Two months ago, I tried to win her back but it did not work, and I continued doing no contact. 

I made progress and changes since then - started dressing better, working on my music, and I'm moving in two months to my dream city (I had wanted to go before we started dating). I was doing so well with no contact but also living my life in fear of running into her. 

Two days ago, I went into a store and I saw her there. We were walking in the same path so it was unavoidable. Small talk at first. I thought she looked better after not seeing her for awhile (maybe my perception). I asked her if she was dating anyone and she said she did not want a boyfriend (I'm still not sure if she was lying). She went on a tangent about how she'll hook up or date but does not want a relationship. This destroyed me inside. She then kept saying how she wanted to be friends and hang out (we had alot in common). She said she missed the old times and still thought about me alot. I was blunt and said that wasn't happening because I still do have feelings for her. 

I told her about my move as well, maybe because I wanted her reaction. After the encounter, I fucked up and decided to snoop her social network. And of course, I saw things I did not want to see. I read detailed posts about her hooking up and the other guy and it just wrecked me inside. And I realised how lost and emotionally unstable she actually is. I kept wishing things were different. It's amazing how you think you know someone but don't know them at all. 

This set me back alot, and I'm not going to do anything with her.
I'm trying to stay focused on my move and all, but these two days have been unbelieveably difficult for me. She was my first love and I feel like I never will truly get past her.

Could you distill the essence of the text into 1-3 sentences?
<bot>: saw my ex in a store and caught up with her, found things out I didn't want to and it's set me back. Feel like I'm not moving on