User blog comment:Ultimate Heatblast/What side would Nightcrawler have taken?/@comment-3127363-20120602153448/@comment-821254-20120604013228

Kurt and Logan were close, as are Hank and Logan but I don't think this was about loyalty. For Nightcrawler and Beast it's about the righteousness of the cause.

Hank left the X-Men, not just because he no longer liked Scott but, because he didn't believe in the direction Scott was taking the team. Scott and Hank have known each other since they were what... teenagers, they seem to be like brothers, but Scott's been a bit ruthless of late... so idk.