ANSWER:

That person is engaged in fornication which is a major sin! It doesn’t make sense that he is asking about the food he eats. 

It is like someone asking about what to do with his girlfriend who is pregnant in her 7th month and wants to abort the child and kill it before it was born. When the sheikh asked the man, why he did not use a condom, the man replied: I was told using contraceptives is prohibited!

Fornicating and getting her pregnant is fine while using a condom is haram!

What kind of logic do these people use?

QUESTION: If a relationship is haram, is it permissible for one person to eat food given by the other in that relationship? Also, is it haram for the family of either person to eat from this relationship? This is not about haram earnings, but the food itself.”