My friend Lola used this on me (yeah, you read that right: she used it on me, almost as a weapon :) ) once, and I never forgot it.
But more than a saying about romantic relationships, I also think about it in the terms of 'life fatigue' - even the things we love can get tiring IF everything isn't working together. Living and working in Nigeria, this can often be the case. You love your work, but the environment makes it tough to persevere. I totally get it. I do.
But shore up that courage and just try one more time. Then one more time after that. The things we love will almost always make a way to remind us why we love them in the first place :) Maya said so, may she continue to rest in peace.