<human>: I started dating my girlfriend about 4 months ago. Things have been pretty great, we get a long well and besides a few minor bumps it has been a great relationship. She broke up with her ex nine months ago because he cheated on her and was overall emotionally abusive in her own words. 

We were on her phone looking for a website in her history and she scrolled past some google searches that caught my eye. She searched. "Is it normal to miss your ex who treated you terribly" and then went to three websites. They were articles about "Does your first love go away." "Why do you miss someone that treated you badly." I asked her about them and she told me that she was confused why she is still angry at what he did even though it's been a long time and she is over him. She said she knows she doesn't miss him and doesn't want him in her life but she couldn't understand why she is angry with him and thought that was a possibility. 

I know she would never cheat or do anything inappropriate in a relationship. She is open about if he ever texts her and I normally haven't been concerned or jealous about her past. When I had broken up with my ex two years ago I remember being angry even though I wasn't and did not want to be with her, but I was not in a relationship while I had those feelings. 

Are these normal concerns on her part?   Is this something that should worry me and is a red flag for our relationship? I don't want to jump to anything and break up with her without thinking things through. 

Thank you!

Give me a shortened version of the text
<bot>: GF was confused about why what her ex did still bothers her. Searched if it was because she misses him. Told me she realized it's not./Is this normal concerns on her part, should I be concerned?!