Arwen:

When you were angry, you'd both make your points, rather abruptly and crudely, and then just stand there furious with each other. Your eyes would meet and anything you hadn't said would be exchanged. Soon, though, you'd both forgive each other. It was odd, but you didn't mind.

Beorn:

You and Beorn had to tread lightly when you argued. For obvious reasons, it'd be dangerous if Beorn let his temper get the best of him. As a result, you'd forget your arguement and put your hand on his chest, letting him know that you were there and that he needed to calm down.

Haldir:

Haldir was stubborn, and that was that. So, you almost always were the first to apologize. You'd turn to leave, absolutely furious and needing time to calm down, but as soon as you'd hear his small shuffle and the faintest of sniffles, you'd melt. So, yes, he was stubborn, but he absolutely cared.

Nori:

Nori was the worst to argue with! If something bothered you, leave it to him to not take it serious. He'd try to help, but soon start to laugh because he'd find a way to "prove" that you were overreacting. He just didn't get worked up like you did, and it only fueled your annoyance towards him.

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Tah-dah, here's Part II, hope you enjoy!
-Raine