While Clark could already feel the more concentrated shadow and now darkness energies that Shy was sharing with him due to her becoming an Arachne shadow puppeteer, he was surprised to see that Devi was so relaxed.
In their bond, he could sense that he had finally relaxed from all the stress. He was just the same as Clark . He cared for Crim and Shy. but he had been worried that Shy was having trouble adapting to all the shadow energy that she had rapidly gained at such a tongue age.
The reason he had not worried about Crim was the regenerative abilities that Crim had as a slime. Crim could easily heal himself from injuries as long as he had the energy and the core he had his main body within survived. But Shy was radically different. She was one of a kind just like him.
Creation is hard, cheer me up!