Workplace friendship most of the time is work-politically driven. Or career driven. Kind of like "survival of the fittest involves being in a social pack" to increase it. That said, friendships like these aren't real. Without career aspirations and security, I will assume most employees will not care much to want to be friends with other coworkers.
Enjoy any good things, even the little and menial ones, as you will never know what impending distresses could descend upon you in a moment.