Aerrow was a very jealous person. He wasn't proud of it, but it was something he just couldn't help. Even before he and Piper got together, he always felt a stab of defensive anger whenever another male so much as looked at her for a bit too long. Which meant over five seconds. Back when he was a child, it was more out of brotherly protection than anything romantic. But as they grew, she became less of a sister and more of a sparky, beautiful, very desirable young woman. And as the love and desire grew, so did the jealousy.

It was even worse once they got together. It wasn't that Piper was flirtatious, far from it, but she was, to put frankly, quite amazing to look at. And so a lot of people did. Aerrow felt steam pouring from his ears whenever some guy would pass them by and whistle. Then he'd put a hand on Piper's shoulder and send a death glare at the poor fellow, one that could roughly be translated as:

"She's my girl. You touch her, you're freakin' dead."

The message always got across, and the poor guy would scurry away like a subdued mouse. And heaven have mercy on whatever suicidal fool was crazy or stupid enough to flirt with Piper, because Aerrow would have none to spare.