Some people don't understand the promises they're making when they make them,"I said."Right, of course. But you keep the promise anyway. That's what love is. Love is keeping the promise anyway.

This quote is saying that love is not necessarily understanding the promises people make, but it is still important to keep those promises to that person anyways. This could be referring to any kind of promise, whether it’s a promise to stay together forever or a promise to always pick up the phone when they call. In other words, it is important to keep your word to someone you love, even if you don’t understand why they are asking you to do it.