It's like looking at all the students and wondering who's had their heart broken that day, and how they are able to cope with having three quizzes and a book report on top of that. Or wondering who did the heart breaking. And wondering why.
It's great that you can listen and be a shoulder to someone, but what about when someone doesn't need a shoulder. What if they need the arms or something like that? You can't just sit there and put everybody's lives ahead of yours and think that counts as love. You just can't. You have to do things.