I've been reading a lot of theories on who people think it could be, and to be honest, I can't understand some of them since no one will explain them or give any supporting statements or anything. So I want to hear what you guys think, and see who it ends up being hopefully when Book 2 comes out. :) Ok, so let's go down the list;
1) Sokka: It's obviously not Sokka, because if Lin and Tenzin dated when they were younger, that would mean that they would've been dating their cousins; Bryke wouldn't express (and/or encourage) young audiences to have romantic relations with blood relatives, as it would cause many issues with Nickelodeon and other producers/crew members. Plus, Sokka was with Suki at the end of the series, and is still going strong with her in the comics "The Promise" and the "The Search"
2) Haru or The Duke: This one makes the most sense to me, even though I can't really see it happening. I would love if Toph got with either of them actually, even though I love Haru just a tad more, they were both great characters who we'd all like to see again. But did either of them really show any affections towards Toph that might've put off the notion that there might be a romantic interest later on? I didn't really see too much of that, but hey, maybe I missed something.
3) A New Character: This one seems to be most likely, in my opinion. Toph could've met a guy way after the war ended and that's who she ended up with. If this is the case, what kind of guy do think he'd be?
I've heard other ridiculous claims that Amon is Lin's father or one of her Metal-Bending students, but I'm not even going to get into any of those. *huffs* But anyways, who do YOU think Lin's father is, and where might he be hiding? ^.^