<human>: I was well aware that something was wrong with her (no signs of her being attracted to me, no random kisses, only routine sex, always trying to hide her phone from me) but I found out on vacation (with her) that she had kissed and met secretly with a coworker.. I discovered it by reading his messages and she still thinks that I'm not aware, tonight before sleeping I tried to cuddle her and everything seemed fine, by reading her messages they were close friends (he's a coworker), she needed someone to talk with various things and maybe that's because I was too busy studying... Now the worst part: she is telling me a lot of lies on why she has to message him, and she tells me that she isn't messaging only with him but also to a group of coworker...

Ask for any details.. Please help me reddit I'm heartbroken and on vacation with her for the next 3 days.. Should I leave her? Should I confront her? Also sorry for my english..

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<bot>: girlfriend of 5 years cheated on me and pretends to be happy with me, she doesn't know that I'm aware.