[Tails has a feeling Nine isn't telling him everything - but again, he understands why. He doesn't want to come off pushy, and he doesn't want to make things potentially worse.]

I appreciate that. My line's always open if you wanna chat, about anything. Even just shooting the breeze. I'm always working on something, and it helps pass the time if I'm not fully engrossed in what I'm building.

[Which he understands might be a bit much to offer, but he still wants to put it out there. He doesn't intend to bother Nine unless he needs him for something. Or answering something on the network.]

And heck, if you ever want to know anything about me or where I come from, I'm happy to answer anything you'd like to ask. There's a lot we can learn from each other, like I said before.