That's how it's gonna be? Fine, fuck you too.
Leona was used to this, he told himself, this happened every time. He shouldn't be surprised someone else was chosen over him. Leona let himself get attached— to you —and he now realises that was his mistake. Because he might as well have lost you the moment he wanted more. When you crave the presence of another you grow aware of their presence everywhere else.
Leona saw you hanging out with others, he told himself it was only natural. He didn't expect you to be by his side all the time, nor did he expect you to cut all ties with those you care about. Yet the more attention he saw you spend on everyone else, the more he felt he lacked. It was a shitty feeling. He hated it: the thought that one day someone would replace the role he held in your life. He didn't want to be the second choice, an afterthought, not again. So he would choose to leave you before you chose someone else over him.
It'll sting less, he convinced himself.
"I've told you a thousand times already, herbivore, leave me alone." Leona didn't understand why you were trying so hard to stick with him even as he actively avoided you. He didn't understand why he still couldn't find himself getting irritated by your insistence.