1st fight Copen just leaves he doesn't even seem really hurt or anything
2nd fight GV leaves as soon as he can cause he has shit to do and Copen doesn't follow him even though he could. could also view it as being nice for saving GV like 3 minutes earlier against super elise if you think GV legitimately would lose to her
3rd fight in frozen city neither of them take a knee or anything so it doesn't seem like either of them let it go long enough to be serious and they just leave
4th fight GV does try to kill him maybe if you take the explosion seriously but neither of them should be able to die anyway so it doesn't matter
morale of the story copen is cool you can invite him to parties and he'll stand in the corner with his hoodie up farming aura