Have you ever been in the situation of asking your friend (s) to go down with you on a P2P gambling just between you as friends?

This happens especially on the cards, Chess and the other skill-based gambling.
I came across friends fighting throwing words at each other one was expressing his disappointments at his other friend while the other was mocking at him.
It was discovered that the one mocking the other asked the other one to step on let them gamble on a P2P and on the process the one being mocked lost all his funds for the other guy. And he has been asking the guy that won the crown to return him return about 30% out of the $190 lost but the other guy told him that there is no return and no compensations in the gamble so if he must give him back some returns it would be based on his own will.

Guess what, after all he ended up returning $10 to his friend.
So I ask, did the friend do well in returning $10 to his friend or the returned $10 was not enough?

To me, in general, that seems wickedness of gambling between friends on a P2P because such friends are not worthy to be trusted considering the sentiments in playing to win.
I would say that is a daylight extortions amongst each others.