DF cheated on DM. For years. It's only come out this year. Shes sticking with him. They're pensioners. I've not spoken to him since other than to say I'm disgusted and it will never be ok. I'm polite but I just see him as someone DM tolerates, not my DF anymore. The damage feels insurmountable. Anyone had similar situation? I just can't pretend it's all fine even if DM can.