I think since he's not as capable as Eden, he unfortunately won't be able to break him out of the asylum. And, despite all his yearning for Eden's approval, I do feel like he would see this as an opportunity to be finally free of his father. But he'd feel too guilty to leave him be completely, so if the asylum even allows visitors, he would visit Eden weekly. If not allowed, he would at least fight trying before ultimately giving up. Guilt definitely eats at him every day, but if PC's there for him, their presence at least alleviates it.

But this is assuming that the PC is at high love and has the Stockholm Syndrome: Eden trait. If they don't have the trait (therefore also meaning that they're not even in a relationship with Eden in the first place, and by extension, him), he would definitely harden up and try to be like Eden. But if they do, and they're at low-mid love with him, then the relationship would be a little rough, and you have to work for his love and approval (just as you normally would, honestly), but it would ultimately end up like the high love scenario once you max him out.