Nakamura, dressed as a woman, talks to Harima and tries to confess.
This is stopped with a kick as the real thing [Eri] appears.
The truth is, Nakamura is in the hospital with hemorrhoids, and she is apparently there to see him.
Tenma returns there, but reads the mood of the scene and leaves for a bit.
The two [Eri and Harima] meet once again.
Sawachika, though she complains loudly at Harima, displays an expression that might hint at things to come. (:3)
Saying, having been confessed to, [she thought] perhaps he might even come to like her, but...
[Note: not entirely sure about this; the line is not assigned a subject, nor is it entirely clear if she's saying this out loud or if this is still talking about her expression]
In the midst of this good atmosphere, Nakamura (still dressed as Eri)'s shoulders tremble.
Either he's overcome with emotion, or his hemorrhoids just opened up.
Beardy, you do it!
At these words, in behind her comes Tenma, who had returned to dispense some medicine. She witnesses this in silhouette. (S/he probably misunderstood and gave it to Eri.) [Note: what's in parentheses isn't clear; either the spoiler guy is making a joke about ambiguous wording of the preceding phrase, or it's a potential reading of the scene.]
With various emotions swirling, [she?] puts the hospital behind [her?], heartbroken.