I got a bit to unpack here like with the headcanon post I made, but thankfully a LOT less here, so...:
Romantic:
x
x
(Came from a pic online for this idea) Unbeknownst to everyone, these three are actually in a polygamous relationship, and love to do kidnap & rescue roleplays.
is sometimes in on it too, mostly cause
encourages it.
Speaking of which,
x
They dated since the 90's, but had a very short breakup due to life reasons. They got back together in the same year.
x
x
Palutena actually has her eyes set on Link, but Zelda isn't having any of it, the two of them even fighting over who can get his heart, causing a fierce and rather heated rivalry between the two. Link actually has no idea what's going on between the two of them.
x
Pit has a crush on Lucina, and wants to be able to confess his feelings, but he's never had the chance to yet. Unbeknownst to him. Lucina harbors similar feelings, although she mostly thinks he's a cute dork.
x
They met through Doc Louis while Little Mac was training for the Smash Tournament, and it just blossomed from there. Some think they are engaged now.
x
They are lovers who love to battle. In fact, their relationship is what brought the female PT into Ultimate.
x
They've been married for awhile, even before getting into Smash.
x
One could hardly call it romantic, but Dark Samus is doing her hardest to give herself a form similar to
, in hopes of making Richter hers and hers alone eventually. Richter is unaware of what's going on though, but gets chills when around her as if something is wrong.
Non-romantic:
x
x
x
x
Considered by the rest of the roster the children of Smash, often seen together very often.
is also acknowledged as such too but rarely hangs out with any of them bar Inkling
x
Samus is Pit's role model, and they act like siblings a lot too. Samus is also giving Pit advice on how to talk to girls after finding out his feelings for
x
They both love to eat, which causes quite a commotion.
x
Contrary to popular belief, Captain Falcon learned many of his techniques from Ganondorf, but joined the Smash Roster much earlier. Even the legendary Falcon Punch is an alteration of Ganon's Warlock Punch. Captain Falcon is one of the few heroic types Ganondorf respects as well for this reason, and secretly would prefer if he instead of
defeated him even.
x
Rosalina is basically their mom, especially to Lucas who is very attached to her.
x
x
A friendly rivalry triangle going on between them all. They like to spar and have weekend cookouts.
x
They actually get along very well, but they act like sworn enemies just to troll
and
x
Pikachu is very attached to her since Subspace, often hopping into her lap when she sits down.
x
It's Mario who keeps the original 12 together, and they all get along too.
x
Luigi looks up to Simon for saving his life, and is trying harder to be brave like him. Simon is taking notice of this, finding it amusing.
x
x
They're all sparring partners, though if trouble is afoot like with Subspace, you'd rarely seem them apart.