When a friend’s Facebook profile has “It’s complicated” in the “relationships” space, that’s bad news. Granted, being single can be complicated. So can being married. But in this context, “complicated” means something that the friend in question is hesitant to try to qualify with a simple word.
Why does a truck full of birds at rest weigh the same as the same truck with the birds in flight? The birds are weightless in the air, right? That’s why they don’t go splat. Flying birds should make the truck weigh less.
Turns out it’s more complicated than that.