Sure she is. It's a tactic used by passive-aggressive people, designed so they can still punish the other person but avoid outright conflict.
He says, "What's wrong?" She replies, "What makes you think something's wrong? :sulk:" He says, "Well, you're being very quiet so I thought maybe something was on your mind." She says, "No. It's nothing.
out:"
He shrugs and goes about his business. She stews in her own juice until midnight, when she wakes him up to tell him what an insensitive, uncaring bastard he is.
:shrug: