Axel mentioned in KH Re: Chain of Memories to Sora, "It was worth saving you after all." And Sora questioned him by saying "Saving me?" here's the clip if u wanna refresher *stop at 5:20*:
YouTube - Kingdom Hearts Re: Chain of Memories English - Part 70 - Boss - Axel II
And remember in the TGS '08 Trailer for 358/2 Days, Saix gave Axel the choice of killing Roxas or Xion in order to get to Kingdom Hearts.
Could this be referring to Axel killing Xion in 358/2 Days, which therefore kept Roxas alive?
YouTube - Kingdom Hearts Re: Chain of Memories English - Part 70 - Boss - Axel II
And remember in the TGS '08 Trailer for 358/2 Days, Saix gave Axel the choice of killing Roxas or Xion in order to get to Kingdom Hearts.
Could this be referring to Axel killing Xion in 358/2 Days, which therefore kept Roxas alive?