Blank

Blank was neglected as a child. Due to this, he often spent his time with the Pokemon that were seen as unwanted... Finding, that rather, they were all just as kind as him. From his childhood on, he's had a soft spot for unwanted/abandoned Pokemon, and has taken them in. He does everything he can to make his Pokemon feel comfortable around him, even building up a tolerance to poisonous Pokemon in order to accommodate their sociability.

Blank was often seen as the weird kid, but more importantly, a blessed one. It was believed that he was blessed by the gods, allowing him to overcome things to make friends with "dangerous" Pokemon, but this was not the case. Simply, he had a motivation to find the same neglected being in those Pokemon he took in, and make it feel like it had a safe home.

This led to Lyme feeling jealous of him. He believed that he deserved something more, that he deserved to be blessed as well. After every battle that Blank wins, Lyme feels unreasonably angry. He often becomes violent, leading to some of Blank's injuries.

(Lyme and Blank are Pokemon OCs, I just got bored and made them as dragons.)