People are funny creatures. You know I'm right because you're one of them. I know what you're thinking, and you're right - I'm also one.
We have so little free time these days. Ever notice how hard it is to schedule something with someone new you have met? I've gone through this process a few times now with a few different people. The initial enthusiasm tends to become eroded by the frustration of hit and miss calls, and schlepp of smsing, and unanswered emails.
Diarising time may seem to be a solution, but by the time your 'appointment' comes up, you;re not in the mood, not ready or just generally overstressed. Being spontaneous works only if you luck out on random slots of free time at the same time. That almost never happens.
Finally one person - the more sensitive one - decides: let's try to make a specific plan to see each other. The other person feels trapped, controlled, it's even more added stress. Solution - leave each other alone and go back to work, spending time in front of your computer and stuck in traffic jams on the way to work. This is what life is all about. We were born to be egotistical money making machines, not fathers, friends, daughters, sons or lovers. Get back to work!