catcher in the rye- chapter 6

Stradlater doesn't like the composition Holden wrote for him at all. Stradlater won't tell Holden what Jane and he did on their date. They get into a heated arguement and Stradlater ends up hittting Holden and makes him bleed. I think Stradlater should have been more appreciative of the work that Holden did for him. If he wanted something better, he should not of gone to a kid that is flunking out of the school to write the paper for him.