Some people consider love as something that you give and receive. If one is receiving, she thinks that the other one loves her. When she doesn't, then he doesn't love her anymore. Well, I imagine love as a separate existence; a third part where you put your investment: feelings, time, money, dreams, sacrifices etc; a third part where both put their investment. Sometimes maybe one of them puts more than the other; but always they put both. And each one of them withdraws love currency when in need.
In the case that one doesn't contribute to the love union, the whole building collapses. They get separated. I don't know if they get something back from their investment in this case. And I don't know if it really matters. The only thing I do know is that it takes time to make profit. So you 'd better find a good partner!
