I have just discovered my dad has been having a long term affair. My parents live abroad as I do although not in the same place. I am visiting them, borrowed dad's IPad and made this discovery. His mistress lives in England and it appears to be a phone/email relationship with rare meetings. Just horrified and distraught for my faithful, devoted mum. Dad knows I know and has promised to end it and devote himself to mum. They are due to retire next year and i had been so happy for them to be beginning this new chapter together. Our geographical spread makes this even more difficult as I am unable to support mum in person due to having small children. Also afraid for dad to be alone in his old age as no other family and mum comes first for me now. Leaving tomorrow and despairing what to do. Anyone been in a similar situation?