Colossus was a crush, period, no more. They both have WAY moved on since then, and were only glued back together because of comic book rubber band continuity.
Wisdom / Kitty was about as creepy and wrong and borderline statutory as Donna Troy and Terry long ever were. It grosses me out just thinking about it.
Kitty's first time was ILLYANA. Later, after Illyana died, she ended up with RACHEL for a while. Those are the two most important and significant relationships in her life. Anyone who doesn't acknowledge that is... well I don't know what character they've been reading but it sure as hell isn't Kitty Pryde.