I'm pretty amazed at how well handle this episode was from the lines of dialog to the visual cues, despite being a little fan-service.
The conflict wasn't solved by physical means but of one that allowed our antagonist, Aika Hayakawa, to understand her feelings and her actions. She didn't mean to plot the breaking up Tsubaki and Urabe but was just caught in her emotions when she broke up with her boyfriend. She just wanted to have someone who does care for her but things wouldn't work out by just toying with someone with a kind heart like Tsubaki.
While Tsubaki is a bit of a idiot for falling for Hayakawa and being too kind for his own good, he still held his ground. By now he knows what is right and wrong when it comes to relationship and goes with his gut than his thoughts which going back to his old memories of his crush for Hayakawa. It was also right on his part to not totally hate Hayakawa for what she done as he still see the good in her and believes that she can move on when her emotions in straighten out.
Urabe, as usual, has some strange ways of setting up and deploying her plan. From the weird robot costume to the nude scene, she is always surprising. If there was one thing I would complain about this episode is that it didn't show the part where Hayakawa was talking to her boyfriend that was shown in the manga. However, taking it out of the show allowed us to imagine that Hayakawa was ready to move on after her little speech with Urabe and wasn't necessary.
While this could easily be the last episode of this season show (I'm hoping for a season 2) there is one episode left so stay tune.