That was definitely an understatement. He was a whirlwind of emotion, anger at the forefront, but there was also confusion and doubt mixed in for good measure. Besides, he liked his lightsaber, especially since he didn't really have much information to work with and yet still made it successfully.

"Because Obi-Wan Kenobi is dead," he stated matter-of-factly, his tone one that indicated that this fact was obvious.

Kylo was just going to ignore his expression for now because he didn't need to listen to some Jedi insult his perfectly acceptable lightsaber.