Whatever the final form of the relationship ends up being, I am for the moment very much struck with the thought of "The average person's first relationship doesn't work out" which would obviously Apply to the Literal Everyman Tadano.
Which would make the funniest long con ending of this, and I swear I'm not trying to go full yuri goggles but that chapter intro pic is giving me thoughts, but the absolute funniest long con of this manga is that it ends in Komi/Rumiko and Tadano being an absolute bro and helping them get together.
Like could you IMAGINE if the author actually pulled that off?