Moonspear maybe its just jealousy

She called to him but he didn't comprehend what it was she said; however, he came sweeping back to where she lingered and watched as she, agile and full of confidence, rose up and tore the skin off of the tree. The black-barred surface peeled away and fell to the earth, and Revui prowled closer, his head lowered to the thin paper-like object and offered it a few sniffs. It smelled like a tree, no different from before.

You may need to to eat the bark for a few days until the pain lessens, Speedy clarified. Revui glanced at her, then at the tree which had become partially exposed after having the bark cut away from it, and gawked at it for a moment. It surprised him that something like a specific tree could be of use for his sore jaw and aching head; it was a bit of a lightbulb moment, although it did not last long. He ducked towards the bark and cracked off a chunk with a chomp of his teeth and began to work at it with his molars, swallowing some chunks but mostly making a mess as he tore it up — and when he was done, his tail waved over his hips, pleased with his new knowledge.

Thank you, he murmured next, licking some shards of thin black-on-white from his lips.