The sarcasm in Jason's tone makes Donna pause, and she frowns at him. "What's that supposed to mean?"

"Nothing, nothing!" Nessie hurries over to Donna and takes a hand in each of her own, giving them a squeeze. 'Please don't leave.' "It's just... we're meeting up with Mom, maybe, and I don't think either of us were expecting you to show up in... your work clothes."

Donna squeezes Nessie's hands gently in return, but the explanation does make her raise an eyebrow. "I thought I might have to... protect you." The 'from Jason Todd' is unspoken but the message is likely received loud and clear by Jason and Nessie both.