Overheard my Dad on phone with a mistress what do I do?

You should react to the birthday gift and acknowledgement however you choose. Even though you two didn't work out the 2nd time around, him acknowledging your birthday was thoughtful. He didn't have to.

Doesn't mean you have to go out with him again or give him another chance.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.