Lee know is you mean and cold boyfriend. Behind that cold demeanor, he really loves you. He loves you alot, he is just emotionally insecure and doesn't know how to express his emotions properly. He was playing on the PS4, not paying any attention to you. You kept on trying to get his attention until he finally had enough.. "You're being so annoying, Y/N. Behave like an adult instead of being so immature!" He sounded so cruel and mean. He didn't mean to. He couldn't control himself.