Ryu watched Sarriel's back until even his eyes couldn't see her any longer. He suddenly hoped that she would be alright. This last action of hers, at the very least, reminded him of the version of her he had actually cultivated feelings for, rather than the version of her he only really had a crush on.
To have such a different set of opinions, and yet still leave with this act of kindness… That was the Sarriel he knew.
Her cultivation technique was quite special, but what Ryu was absolutely certain of was that it couldn't manifest personalities from thin air. At best, it could magnify parts of what Sarriel already was. And, in Ryu's opinion, whenever she regressed back to her 'real' self, she ended up amplifying her core ideals more than she otherwise normally would.