“Axel chose Roxas over Xion” I guess that was why he stopped her from killing herself peacefully without needing to fight Roxas, certainly.
Axel chose the same thing he has ever chosen. Himself. Without giving a damn about either Roxas or Xion in any way that didn’t involve him getting what he wanted.
That’s why Roxas and Axel’s friendship fell apart. Because Roxas realized Axel would do anything to keep Roxas in good terms with him so he’d “feel like he had a heart”. He realized Axel had never been truthful with him, about anything, and he broke off an unhealthy friendship.
Which Axel proceeded to ignore throughout KH2 because he wanted Roxas back, and his wants were the only thing that mattered. Not the fact that Roxas felt so betrayed by Axel in the first place and didn’t wanna be around him that he actually said he didn’t think Axel would care if he died.
“There is waiting, there is pain, there is blood, but it is joyous all, for we are in the sorrows of a travailing woman, from this arbor is the place of the breaking forth of yes, the children of hell, but also the opportunity of our salvation.”