[Tim scoffs and rolls his eyes.] Oh, grow up. [That's not fair and not exactly the right phrase he wants to use but: stop being a monster doesn't have a wildly used colloquial for him to use instead. He goes on to explain his feelings a bit more.] So you're willing to give up and become a monster all over one man? One person and you're willing to start hurting people and giving in to being a monster? That's not fair to put that much pressure on Martin. To make him the one thing holding you back.

[That is still not fair, but Tim might be letting his frustration over not being able to do much about Elias, unable to stop monsters from killing his brother, and feeling just in way over his head spill over and all over Jon.] If you really want to not become like Elias then you need to be better. Because if you really can't cope if Martin suddenly vanishes? Then I won't hesitate to take you down before you become too dangerous and I really don't want to have to do that.