My lovely mum passed away many years ago my dad got remarried to a lady who sadly passed away 12 months ago. I was talking to my dad about my DM and out of the blue he announced that she had been seeing someone else in the early part of their marriage. I have no clue if this is true or not but it has really hurt me and I am unsure how to react. My father is in his 70's very switched on and works full time