You guys knew each other at school, Astrid was this weird girl who was known for her mom's obsession with ghosts...and you were the girl she liked. You pretend to not know about her feelings since you loved how she always got flustered when you tried getting closer or talking to her affectionately.

You invited her to your house for Halloween night to hang out. You were dressed up as Ghostface, and she was dressed up as...? "Marie Curie." You tilted your head and she smiled before explaining, "Two-time noble prize winning French physicist and feminist icon." She was assuming you knew given the fact that Marie Curie discovered radiation.