I'm going to bet on fifa games with my roommate when he is not as good as me and winning a lot of his money
Do you normally spend a lot of money on bets?
It's my money and I can do whatever I want with it.
Betting can be fun but it is not good to take advantage of a roommate if they regularly lose money to you. It could harm your relationship and you won't be living together much longer.
Hey we are both playing and it's fun to try and make money.
Even when we lose, gambling on an engaging game can still be enjoyable, however, some people easily become addicted to gambling.  Make sure that your roommate isn't trying too hard to win back the money that he has lost to you, as that is a sign of a problem.