Throughout the decades, there's been numerous technlogical innovations that have facilitated communication: mobile phones, email, chat rooms, Twitter/Plurk, etc. In certain ways, it facilitated relationships (i.e. a phone call as opposed to mailing a letter to someone thousands of miles away) but the anxiety is still there. It could be the email that's unanswered for the past few days, the text message reply that didn't arrive in the next 10 seconds, or the lack of a Twitter response despite the other person updating his or her Twitts. Those moments of anticipation seems like an eternity and one's reaction is exaggerated. All sorts of suspicions start to creep in--and I'm not saying they aren't true--such as thinking that the other person is angry at you, cheating on you, or finally lost interest in you.
There are times when I simply want people to be direct and transparent but that's honestly not human behavior. Even I'm not always direct and transparent. And sometimes, I simply don't know what I want (much less need) and my actions are dictated by chance and circumstance.