What does "this" refer to? She released me from her embrace and said excitedly, “I’m just so proud of you guys. Daniel’s told me so much about you. I feel like I know you already.” “Yes, ma’am. Me too.” “So y’all are getting to be good friends?” I looked over at Murph and he gave me an apologetic shrug. “Yes, ma’am,” I said. “We room together and everything.” “Well, I want you to know if y’all need anything, I’m gonna take care of you. Y’all will get more care packages than anyone.” “That’s really kind of you, Mrs. Murphy.” Sterling called Murph to help another private sweep up red, white and blue confetti from around the three-point line of the court. “And you’re gonna look out for him right, right?” she asked. “Um, yes, ma’am.” “And Daniel, he’s doing a good job?” “Yes, ma’am, very good.” How the hell should I know, lady? I wanted to say. I barely knew the guy. Stop. Stop asking me questions. I don’t want to be accountable. I don’t know anything about this. What does "this" refer to in the last sentence? Thanks!