Nishikata is eager to pull an April Fool’s Prank on Takagi, but immediately he plays himself by essentially asking her out on a date, a get-together independent from class or school. And for the record, Takagi is delighted to go on a date, even if Nishikata refuses to admit that’s exactly what it is.
The constant futile attempts to “get one over” on Takagi are simply a shallow front for the truth: Nishikata would rather Takagi were in his life than not. One need only see how morose he gets when imagining she’s not in his class when their second year starts.
Making full use of the “date” opening Nishikata so carelessly gave her, Takagi insists they attend to the sakura viewing with Yukari, Sanae, and Mina, who is constantly exercising so she can one day become a gravure model…though her friends note she is quite a bit removed from that future.
The only future Nishikata claims to want is one in which he’s not constantly teased by Takagi. Drawing from his beloved 100% Unrequited Love manga, he tries to throw her off balance by dropping the -san and simply calling her Takagi. While that certainly surprises Takagi, she’s actually fine with him doing it whenever he likes, and when challenging him to do so, he crumbles.
Still, when the second year begins and Nishikata’s desk is right back next to Takagi’s in class, he is fully committed to acting like an “upperclassman,” which means dropping her honorific. This also backfires when he proves utterly unable to follow through, combined with Takagi’s teasing. He eventually gets so caught up in it, he naturally drops -san again, which Takagi reiterates is not something she’d ever mind.
Hardly any other anime around gets away with basically rolling out the same thing over and over again, yet it almost never gets old. Perhaps that’s partly because there are always little hints and indications of progress being made on the romance front. Takagi being ever more assertive doesn’t hurt either; her “enough lies, let’s just talk” line was particularly satisfying, as was her recitation of lines from the 100% anime both she and Nishikata watch.