And Cell did the same thing with Gohan. Could've killed him but decided to torture him pushing for.him to break just to test his strength. That's not a Vegeta thing, that's a Saiyan thing that Vegeta, Goku and Cell had that differed from everyone else. Cell did what Vegeta JUST did to him and Goku did the same to Cell by giving him senzu bean to fight Gohan plus every other fight he's been in.Let's be real. Vegeta is a retarded if you think about it.
Cell knew Vegeta was a real dumbass. Vegeta would be a winner and a hero, for the first time that he wouldn't be L
Vegeta was beating Semi- Perfect Cell ass and about to kill him until Cell was begging him on some "Let me absorbs so I will become a stronger and you can fight me", juzeling on Vegeta that made him so arrogant so that's why he's a bitter toward Kid Gohan that beat Perfect Cell.