April makes a wish after one of Cassy and Donnie's more messy fights over her
(Donnie gets amnesia and doesn't remember April or Cassy, after the confusion of them being intruders being cleared up he is pretty neutral to both Cassy and April) Cassy seems to take a liking to Don given he can actually get to know him , without worrying about Donnie trying to steal red, and April has lost the previously friend zoned Don. Donnie seems pretty chill about the whole situation.
Disclaimer: I don't own Tmnt 2012, have fun adopting