I will also say, i don't think Tonkla loved Korn at that point. The way Tonkla yelled 'Korn, stop' makes me think he had fallen/started to care for Win and was simply using Korn, which is why he pushed him and why everytime Korn interacted with him at that point, he was emotionless. The only time we see him show actual concern again is when Win is the one in danger. Well all that and also the fact Tonkla and Win's actors seem to be a shipping pair so chances are, the authors wrote with that in mind.

 melonpanfan:

With both the men that love him asking what happened and why, Tonkla smiles and admits to killing the two fuckers that killed his brother, revealing to Korn that his brother was the other one he killed, and that he cheated on him with Win.

Okay so both Korn and Tonkla think Great died but isn't it established that he didn't in this timeline? At the end at the temple, Tyme prays for his late grandmother and Great prays for Korn and Tonkla, which means it's the timeline where they died because of Tonkla killing Great (and Title). But Great is alive so that doesn't make sense to me.