Do you think that all the kids from the invasion plan thought that Hakoda and Bato were together? And then after finding out that they were not (to the disappointment of both Sokka and Katara) they tried setting them up? Also personal headcannon, Katara and Sokka were complete agents of chaos while trying to get Bakoda together. Also they whooped the ass of whomever tried to badmouth the couple.
Ohmygod I can just see Haru and Teo going,, wait your dad isn’t dating that guy from the invasion? and Sokka and Katara are like wha- what what do you mean? Bato,, Bato is dad’s best friend. they’re not... are they? and it’s not until after boiling rock when they get to ask hakoda if he and Bato are together and apparently the answer is no ? Sokka and Katara can’t let that stand. They put a pin in it until after the war is over but,,, Operation: Get Dad a Boyfriend commences.