She cheated 6 months in. We stayed together 6 months longer. Don't stay, always leave
you tell yourself you will forgive her. that you can let it go.
but in the future there will be fights, and in the back of your mind you will remember "you cheated and disrespected me so i am not going to respect your bullshit opinion on this matter"
and it totally erodes things. You just have to not give a fuck that it happened which is next to impossible for me personally. Suppressing doesn't working. Talking about it for hours doesn't work. Once it happens, it breaks you and just turns into a disease that stagnates and destroys healthy boundaries and reconcilation behaviors in future disagreements