Saying that is implying Ucchi ship is popular when it's not even in the slightest.
Fanart, doujins, and comments imply otherwise. Where are you getting this information from?
And if you ask some persons, Asuka and Yuri will had already show romantic feelings,
That's why I used the word "irrefutably". There's a much stronger case for Ucchi than Asuka or Yuri on this topic.
Anyway in the end, Tomoko will end with nobody because it's not a yuri so they will just endep up as a huge group of friends.
It was just a hypothetical.