Ok so I can't be the only one thinking this right? So, I have a theory on the ship Touya x Yukito (or Yuki your call) my theory is that the reason why Touya and Yukito don't have girlfriends is because THEY ARE ALREADY TOGETHER think about it, they are always next to each other, they never leave each other's side (except for class), they are there for each other AND in season 1 episode 14 after Tova confessed to Toya she aksed "... are you in love with someone?" an Touya nods and that's it THAT PROVES THAT HE LIKKES SOMEONE ELSE AND THAT SOMEONE IS YUKITO!!! anyways I thought I share that now you have something to think about :)