That's just how she is~
[Now a wave of guilt hits him, and seeing her cry--something he didn't think she would ever do, makes him feel bad. He knew all too well the pain of losing family. He lowers his head, because he's not sure he can look her in the eye right now.]
...I know what its like...to lose people you care about. It...[he forces himself to finish] hurts, but...you can't be miserable forever. It won't change anything! [Yeah, he was a troublemaker sometimes, but he was mature too.]