[He's having a lot of complicated feelings about this right now, but the largest one is easily regret, in the tangled, confusing mess of frustration, desperation and guilt.]

Do you want me to just... leave you alone, then?

[It's a genuine question. If he can't help them by sticking around, maybe not being around will be better.]

I- I promise I won't do that again, still. No matter what your answer is.