Not at all, he's just trying to figure out what he can about his teammates since he's the only member without powers. He'd rather be prepared for the unexpected, than be blindsided by it. GA is in her mid 20's so she's not really fit for the 'Young' part of Young Justice. And with members like Etrigan and Doctor Fate having been part of the League it's not hard to come to the decision that another obviously magical being would have something similar. Whether that's true or not he'll just have to find out.