I just picked up this Facebook-exclusive(?) term "seen-zoned" or "seen zone". I've asked my girlfriend who uses Facebook about a possible French equivalent, but I'm still none the wiser.
Another Facebook term "unfriend" seems to have already made its way into a dictionary entry, but not for "seen-zoned".
You courageously click on your crush’s name and type a nerve-wracking ‘Hey, how’s it going?’ You wait for the little check mark to appear, the one that tells you that the person that you want to acknowledge you has actually read your message. And then you wait again. You check your Facebook over and over. You sneak peeks on your phone at work. You double check to see that the little check mark has actually appeared.
You go from thinking: ‘Maybe they’re just busy’ to ‘Why aren’t they responding?” and after a day or two or even a week, it becomes clear. They’re not going to respond. They’ve seen your message and they’re leaving it unanswered like a high-five left hanging in the air. You’ve been seen-zoned.
I’m guilty of the seen zone myself.