Girl (F23) I started dating casually told me she had a FWB situation with her best friend before she met me (M29).

Apparently she was in a FWB situation with her best friend right before she met me but has put a stop to it as far as I know. They still hang out a lot. Apparently she said she became really close with him during her last 3 year relationship and after she ended it they started a FWB situation. She says she doesn't have feelings for him. According to her he was her rebound and emotional support. She told me today that he has the same Meyers-Briggs personality type that I do and she and I share a good compatibility. It's making me feel a little weird. Should I feel weird? Is this something I need to talk to her about or is it none of my business?
TL:DR Read the title.

Submitted July 15, 2019 at 03:15PM by Coos-Coos https://ift.tt/2JHK2HG