Let's start with the best thing. The I liked the sudden color change, and "I need to say it" part. Really sold the protagonist's internal state!
As for the audio and art- I think the color composition is nice, but the character art needs a bit more polish. Same with the sound- music fits the atmosphere well, but a bit more audio would feel better. Of course- this jam was a bit short, so I get you might not have had much time for that.
As for the plot and theme... The protagonist isn't too late! Just tell her man! It's never easy, but it pays off :)