Her sister? I did not know she had any family, other than the Avengers. [Which is why she's so protective of them, and why he can't really begrudge her not trusting him. He was a threat once, he betrayed her trust, he could do it all again.]

You did ask if I were feeling apologetic, and if it meant you could punch me. Well, I am apologetic, but I would prefer a more constructive form of repayment.