He has beaten me completely. First by his own actions, and then, through his sons. And what has he left for me here? Vegeta looks at the ground, remembering Goku's death How? How could you die like that? How, Kakarot? I'll... never... have the chance... To prove my strenght against you! You died without fear, what does that make of me? I am no warrior, and i will never fight again...

Then, in a fit of rage, he flies away.