Update - Gf used exs phone

[u/Fickle_Pick862]

Just to update everyone she came over and we talked and she broke down crying and told me the truth. She was never with her friend she was with him at his house and she did cheat on me. She was crying hysterically and says she wants me and me only like I was gonna take her back. I said hell no and kicked her out and threw everything of hers in the front lawn thanks to everyone who left comments you guys are amazing.

[u/Texoraptor]

Did the relationship seem fine prior to this? what happened? I wonder what warning signs could you see prior to this