Spoilers for the marriage. They are set to get married, but I thought that their relationship has been kind of on-and-off for the past few decades. Are there any issues Pre-Whedon that really highlight their love for each other? I do recall his relationship with that healer babe during the first Secret Wars (I haven't read that in a while, though.), but I don't think that's been brought up since. I haven't read a lot of the key Claremont (From his first run.) issues with Kitty, but i do recall their relationship being pretty friendly, but not romantic. Thanks.
Speaking of Peter, now that I think about it, he does have kind of a shady history for someone who's supposed to be the "Nice guy" of the team. He's killed Proteus and Riptide (Although Proteus could be justified away. The Riptide one was more in the heat of anger and rage.), he beat up Pete Wisdom when he saw her with Kitty, and he joined the Acolytes. Yeah, at first he had brain damage, but didn't he go BACK to them after they fixed the brain damage? Isn't he supposed to have a son out there, too? When you take all of this into account, Peter might not exactly be the most stable guy out there.
What do people think of the marriage? It might actually be GOOD to have a marriage that lasts in the X-Universe! We all remember what happened with poor Scott.