It's not just an obligation.

[Let's cut that thought off right then and there.]

Up 'til you came here, you always had people. You had your friends... [family] to back you up, to share your troubles with. Whether you realized it or not, it took off some of that burden.

You think I wouldn't notice? What could happen if you suddenly didn't have that.

[He knows what it's like. He knows that darkness all too well.

It hadn't been in jest, when he asked if Eyes were planning to let himself die.]