Facebook Stalemate
Two people are almost friends, but not quite. They both want to be friends, but neither has the guts to ask. They're stuck in a cycle of almost-friendship, waiting for the other to make the first move.
You're both on each other's feeds, but you're too scared to add them.
You know they'd accept, but you're too chicken to ask.
You both want to be friends, but you're too shy to make the first move.