because your in a toxic situation, i'm not even hating I've been there.
read about co-dependency disorder
I've been cheated on twice
The first time I never thought about it all, when she finally told me that she did I couldn't believe it. I went from anger to sadness to having this pit in my belly. I could not eat, there was not one thing I wanted to do, My only haven was when I fell asleep as my mind wasn't clouded with painful thoughts then. You think about what you did, could I have done this better or that better when in reality nothing would have changed the outcome.
The second time I was pissing razor blades, went to the dr and he brought up are you and your partner in a monogamous relationship, well I was practising monogamy , wasn't sure about her.
So i had a keylogger on my pc
, she used it and I got her email and fb password, she had a hidden fb where she was talking to her ex, basically living a double life.