Should I break up with him or stay with my partner after him cheating?

Even if she was your blood cousin... it doesn't count as incest. Incest is between parents with children, siblings, aunts and uncles with nephews and nieces, grandparents with grandchildren. Reproduction between cousins carries no more risk of genetic problems than a woman over 40 having kids.

(I bring that up, because that is the problem most people have with it).

There are people who have married their cousins and have had perfectly normal children from the relationship. There used to be a bit of a social acknowledgment that boys with gorgeous step-sisters were sexually involved with them - but only because of the Sarah Michelle Gellar film Cruel Intentions. That's mostly disappeared now.

So, if this girl is your step-cousin, in the sense that she isn't even related to your family whatsoever, and was adopted from another family.... The only thing wrong with that is the fact that you actually have to explain to people that she's your step-cousin when they give you weird looks when you're together.

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.