I shall consider this a confession.
Confession of normal
We all know the real words are on the screen. :P
Hahaha, yeah, it's like her confession comes with subtitles.
At this point, whatever ambiguity still remained has been swept away. She says "normal" for "love" and this chapter gives us conclusive proof.
The narrative pivot of the story at this point is that Sayaka is trying everything in her power to make Mako say "love" instead of "normal" and so far keeps failing miserably. XD