Ayye Gawain Two for Flinching Buddy!

(Line 2265 to Line 2283)

So Gawain went on this honorable journey to see the Green Knight based off an agreement that was made a year prior. On this journey Gawain kept to his faith and religion, he refused a beautiful woman of some unspoken extracurricular activities, all while knowing he was going on this journey just to be beheaded by a stranger dressed in all green. These acts in most cases would be viewed as honorable or noble actions (at least by the reader). However, after doing all these things he finally reaches the Green Knight and is prepared to be struck by a critical blow. But as the blade is flying towards his neck he flinches like a normal person would. So the Green Knight stops the process, basically just so he could call Gawain a coward and slander his name. So now Gawain has already gone through the fear of death once as the ax was swinging towards his neck, but NOW he's going to do it again because the Green Knight had to stop what he was doing just to call Gawain (in simple terms) a pussy. So Why is the Green Knight trying to bully my man Gawain like that? From what I've seen hes a great guy with his morales rather in check, so why waste the time to call him out for being human and flinching in the face of death?