>>281586028
>explains why it was only one
Yes, only one, because they literally only had ONE (uno, singular) "development", of which didn't actually go anywhere, because the manga forced it to be overtly platonic before things got spicy.
Himura might as well have just posted a picture of the publishing company's head staff saying, "Hey, this is where the fun stuff ends, since it's too NSFW otherwise. Back to your regularly scheduled episodic installments next week." That's how not-subtle the end of their "relationship" was.
I'm sure you can prove me wrong with their earlier interactions though, what with the endless interruptions and cliffhangers.
Oh, you can't. Nevermind. And now, as I said, she's just there for filler chapters for gags, just like Ai-chan is. Fact is they are dating in the twitter version and they aren't in the manga. They've been frozen in place since the "Hey, did we mention we don't feel any lust towards each other yet?" copout, unlike picrel which is superior.