Shout from the rooftop, but put it on Facebook?

"I met someone who makes me incredibly happy," I want to shout from a rooftop. But I can't quite bring myself to do the same thing on Facebook. Most of my friends already know that I'm seeing someone. So what's the big deal if, oh, let's say, 250 people who I only marginally know are informed about my new source of joy, too? All I have to do is change my personal status to "in a relationship." Simple. Or not: What if he doesn't change his status? Will they judge us from the outside? Will it jinx us? I went so far as to bring the subject up with him on the phone. "It's weird to be introduced as...