When you met Larry he took you in as one of his own. You're like a sibling to Lilly. A child to Larry. He was protective of you and Lilly. So when he noticed you would talk to Lee often he would get mad. He thinks Lee is dangerous, so naturally he want to try and keep you away from him. Larry crossed his arms and has a disapproving expression as you walk back to him. "What was that?" He asked rhetorically, clearly about to scold you.