Sometimes, in my country they borrow a small money like 10$ from their girlfriend. Then, If the balance is up like 100$ he sharing with his girl. IMO as long you are not addicted are fine sharing with them, the problem with gambling is while you are getting addicted.
This is weird, easier said than done to be honest. I would give 20% chance of getting this thing, that means you have to be lucky to win this amount. That's like x10 of your initial bankroll, damn, I would never do that like borrow money to gamble and promise someone to pay when I win as most of the time the result is (-) negative. Addiction is another thing though, but this one is pure naitivity.