We grumble a little now and then, to be sure. But there's no love lost between us.

当然了，我们有时也免不了争吵几句，但是我们还是相亲相爱。(没有失去爱)。

We grumble a little now and then. But there's no love lost between us.

我们常常有点抱怨；但是彼此之间仍然相爱。