@zac8286 I was just thinking: Not wanting to take away from your Black Cat story (where Peter and Felicia get engaged in the end) but part of me just pictured a What If story or an alternate continuation of the Crime Fighters story where Peter and Kate fix up their relationship and eventually become engaged by the end.
From what I've heard, old wounds can heal in time. (considering Kate had only broken up with Peter after he killed someone to save her life, even if it was for the best)