In regards to the title, if you classify someone as TSUNDERE, that basically means that they are normally aggressive or come off as harsh, but they suddenly fall in love.
It can also just mean that they appear harsh on the surface, but underneath, they are lovestruck. It's combines the terms tsuntsun (meaning aloof or pointed) and deredere (lovestruck or fawning).
* Translation of the SECRET CODE:
"I really like you.
I'm very happy when I'm with you.
I really like you."
Affiliates: My Little Pony Ties
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