There is an actual good ending for him. Not sure if you got it. It actually ends his story in a very nice way. I got no idea how to do Aria's survival ending though.
1. Say nothing
2. What's your problem?
3. Say nothing
4. W-what are you staring at?
5.Please
6. What are you doing?
7. Beg
8. Stay still
9. Wait
10. Let me help
11. Can I have some food too?
12. Look for Chris
13. Don't go