Granted, we may not be paid back, and here's the rub. . . we have to be okay with that. We must continue to love without any animosity, trusting the Lord to be our Provider, as His Word promises.
When we share like this, it's best to consider it a gift and then if the person is able to pay it back and they do, we'll be pleasantly surprised. But if they can never repay us, be assured the Lord will not be outdone in generosity.
But if we give to others in their time of need, the Lord will make a way for us in our time of need. Then everyone will have provision enough.
Doesn't this sound like the New Testament church?
(Please repost this to Facebook or Twitter or something and see if we can generate some interest).