People do grow and change, and broken people can be rebuilt, but this isn't exactly a culture rich in resources for repair. The person has to want to change, and Arya has absolutely no reason to want that. The world she left behind wasn't safe. The people she left behind--Sansa, Cat, Bran, Rickon--had failed to protect her, and she wasn't close to them in the first place. She was close to Ned, and he's dead. She was close to Jon Snow, and they said their goodbyes. She was very close to Syrio, and he died protecting her. She became close to Gendry, and then he ended the relationship. Yoren died. Lommy died. And so on. Arya has learned that people die or go away, and you may as well not get too attached.
Arya is getting the opposite of what she'd need, to reverse her assassin training. And she's not a reluctant, joyless assassin looking for a way out. She loves this life. It makes her happy. Her life boils down to a list of people she wants revenge for, and the people she wants revenge on. It's hard to see how that could change.
Shipping someone sexually is sexual, and so pretty much any shipping of Arya is creepy. Doesn't matter if it's Arya/Gendry, Sansa/Sandor, or whatever, a ship is a ship. Nonsexual relationships don't require shipping. Obviously Arya has replaced Jon Snow with Gendry in her mind, but that doesn't mean it couldn't turn into more. At first Arya/anybody was creepy because they were too old for her. Now it's creepy because of what she is. Arya's assassin training does mean it couldn't turn into more. The partner can't know who she is, and is a sitting duck if the Faceless Men figure out what she's doing. If she's ever reunited with Gendry it will be because he's her assignment, or because she's disguised as someone he likes, in order to accomplish the assassination of some other person. I have mixed feelings about her being reunited with her siblings, because the same thing holds true--if she's reunited with them, it will most likely mean that she is sent to kill them, or someone they're with. So I'm not eager to see her reunited with Gendry or with anybody else, although I enjoy her POV's and see her as being Last Person Standing, should it come to that.
Edited by Hecate7, Yesterday, 12:05 PM.