Hahaha I didn't expect you asking me a question. Of course I would answer. That's quite deep for a question, but let me try to answer.

The form of love that rarely I see is "Understanding". Most people say that communication is a key, but I don't quite agree with this statement, because no matter how much a couple communicate their problems, if both of them does not understand about each other point of view, it will be pointless. When in relationship there is a lot of "understanding", e.g., understand our partner feeling, understand the boundaries, understand our partner mind, and so on.

It's relationship, where not just one party should understand the other party, but both of them should try to understand each other. If communication is a key, then understanding is the key hole. I hope this answer your question.