Chosen answer:Having just been shot a second time, he was probably dying by that point. He'd done many extremely questionable things - even murdered an innocent mom - and stood by as other terrible crimes were committed in his presence. He'd grown close to Mr. White, who'd just murdered two friends and taken a bullet for Orange's sake - even as Mr. Orange was betraying him all along. So partly this was about his attachment to Mr. White, and partly a death wish stemming from his own guilt about his actions. He knew full well what would happen but told Mr. White anyway, disregarding the consequences.
Chosen answer: Having just been shot a second time, he was probably dying by that point. He'd done many extremely questionable things - even murdered an innocent mom - and stood by as other terrible crimes were committed in his presence. He'd grown close to Mr. White, who'd just murdered two friends and taken a bullet for Orange's sake - even as Mr. Orange was betraying him all along. So partly this was about his attachment to Mr. White, and partly a death wish stemming from his own guilt about his actions. He knew full well what would happen but told Mr. White anyway, disregarding the consequences.