Mostima and Applepie gave me "weird platonic long-distance thing" kind of vibes during Code of Brawl.
Exu also notes Texas keeps even her kind of at an arm's length, though the two of them get along and work together well. (Tex likely drags around all kinds of emotional baggage that makes her so aloof but that's another topic entirely.)
...basically you don't find relationships that aren't all kinds of complicated around the Penguins, aside from the very straightforward CroissantxMoney OTP :P