I think Llyod is just pissed that a newcomer suddenly has a ton of control in his party that he leads. Sure, Noel's Talker buffs definitely is a boost to their fighting capabilities, but outside of combat Lloys IS the party leader. He should be the one making calls on quests, expansion, and what not, but right now Noel is calling the shots in and out of battle, and that just doesnt sit right with him.