My first read through and opinion is this...
Station being relatively selfish and callous to ask such a thing of Hanners. Station was no doubt a help to Hanners growing up and set her on the path of establishing herself and getting to as close to "normal" whatever it really means in the long run.
I think it'd be a bit of stalling in her development to stay. Space is nice and all but...You got your cooky scientists, AIs, and robots.
She's made leaps and bounds living together with normal folk. She's as central to the QC Earthlings and they are to her. She learns how to cope and deal with issues by being around them. And them being around her and her innocence and her own issues, make themselves better peeps.
And that doesn't even get into the Hanners/Marten dynamic. I dunno bout the rest of you, but one of my favorite moments so far in this comic has been Marten's creation of the "worry hat" and those two or three strips that dealt with it. Hell, Marten makes her better a better person but hell, she's probably had a bigger hand in making ole' Marty a better bloke. You really see his sensitive and caring side and heck, his passivity drops a little round her.
At any rate. Don't think it's fair for Station to ask this of her, what do I know?
And as sweet as ole' Station is, still find it kinda creepy. And if he returned with her in the bot, even creepier. Just can't get past the whole most likely created to deal with Hanners' mental issues and being that intimate from a psychological aspect to go from therapist friend to anything more than just a close friend. Too strange for me, even given the QC universe.