Deep down inside you know

You know deep down inside that such decisions are not rational, but you justify them with the hopes that you might end up finding someone.

尽管内心深处明知并不理智，但你却以“可以寻得伴侣”为希望，为这些决定找到了合理性。

"You know, Crowley," he said, beaming, "I've always said that, deep down inside, you're really quite a"?

“你知道吗？克鲁利”他笑着说，“我总是说，在内心深处，你真的是一个…”？

I know deep down inside that you will never break my heart or never let me down in anyway.

从我的内心我深深明白你永远不会伤我的心，你无论如何都不会辜负我。