Question: do goku and vegeta become friends?
Answer: They never officially did become friends. After the Saiyan Saga when Goku and Vegeta fought, Vegeta left to heal up. ... So did Goku and most of everyone else eventually. The defining moment for Vegeta and Goku becoming anything “close” to friends was when Vegeta was on his deathbed. Right after Frieza blasted him.