Well I'm no edgelord but telling somebody to get out with only those 2 words, along with no bonus for talking to him again and again, I don't think there was anything else to do.

Oh btw if you haven't yet, talk to the lady who runs that motel (go into the front door) and she will give you a note that Gladion left behind when he left. I won't spoil it, but it reveals a little more about his past life. I won't say it's much, but it's satisfying.




(sorry that I just wrote this whole thing assuming you have the game. If you don't sorry)