At a loss

So one of the students that I took up to Ole Miss in the fall came to talk to me after school the other day. He missed the first two weeks of this semester because he was sick and he missed all of last week, so he was trying to get caught up. He explained to me some of the home problems he had been having lately: He went to Texas for Spring Break to see his sister and his neice and nephews, but was called back to Jackson because his mother was evicted from her house and was apparently sleeping on the couch in the front yard. His father had walked two days to Jackson to be around his family so he could commit suicide. My student had to talk his father through the aftermath. He's also worried about his mother because she's having an affair with a married man, but whenever he tells her she's in a bad relationship, she yells at him. He originally planned to move to Texas after this year to start fresh (because of his grades and some problems he's having with people that live around him), but now he found out his sister (the only stable relative in his life) is being shipped to Korea. He said he and his brother like to get out of the house as much as possible because their mother cusses them out a lot, and so they hang out with an older crowd. He admitted they're both on drugs, although he's quitting because he plans on going into the army. He feels pressure to keep working at his job to help his mom out with the bills, but he really doesn't need to because his grades are slipping. He's worried because he has his sister to pay for a lot of his possessions, but she's leaving, his mother can't, and he doesn't know if he continue helping support himself, his mother, and his little brother. He's seriously considering dropping out, although he was one of 3 students to test higher than a 12th grade reading level.
I didn't know what to do or say except tell him I'd work with him and gave him my numbers at home and my cell so he can call me if he needs to talk or wants advice. I was at a loss for words, trying not to show emotion so that he wouldn' t either.
It's so hard to hold him to the same expectations academically in my class (which now seem so trivial, comparably) knowing this about him.