Does love need repay?

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people say love is given without repay. love is great and selfless.However, there are so many couples divorced for no love-return. They complaint about the trifles that he cared about her wife a lot and alomst satisfied all his wife's requirement while she didn't even agree with his purchasing a new fishing rod. I think love needs repay. people who say he don't need is a hypocrite. love needs our commitment to each other.what do you think about?