I do think that one of the finest form of relationship between two people is that they can enjoy silence between them. So fine it is, yet extremely hard to achieve.
Silence is very common; less so for the un-awkward one. Hard as it may be, it is still easier for you to find someone with whom you can talk non-stop about anything and never run out of any topic than to find someone with whom you can spend hours together and be silent, and still having a good time. It's hard to not question the absence of words. Because silence carries thousand meanings, and is prone to misinterpreting.
Few people can enjoy the luxury the silence gives: to share things that words can't convey. To be mute and talking. To not speak and understanding.
To just sit close and silently within.

Silence is the most intense form of speaking.