I'm not honestly sure if I can recall any memorable partnerships in the storyline of FFXIV - regardless of the genders involved. Partnerships is portrayed as simply ancillary information mentioned in passing. There have been a few of the same gender but there are as unremarkable as the rest have been. I'm all for portraying any NPC partnership in a more involved way as long as it makes sense from the storyline and is not done simply for a means to an end.

However, FFXIV is not a dating app