September 14 2014, 1am
The director of / and . (TvTropes)mentioned that there would have been four by the end of Adventure 02 if . To make things fair, he put the four couples in a hat and pulled two out, and those couples are the ones that ended up canonically married in the epilogue. For reference, the couples that married were / and / . The other two were
In short, they decided the two end game couples by pulling ship names out of a hat. I did not know this but now I feel like laughing.