Susan: "I'm confused by what I want and how it should be classified. Based on my understanding of what is expected, I am reasonably certain that this 'dinner and a movie' instance is not, technically, a date. I will therefore avoid making it romantic in any way."

Jay: "THERE MIGHT BE AN EVIL MAGIC PLOT! I need to either confirm or disprove its existence by being able to vocalize what I like about Susan!!!"

You know things are weird when Jay's concern here, and her plan, isn't entirely unreasonable. Take a step back from our nearly-omniscient knowledge of things as writer and readers, and consider it from her perspective:

Magic WAS afoot.

It IS weird that people suddenly know things about people they'd never met.

It IS weird that someone as secretive as Jay would suddenly be so eager to share secrets with someone.*

It IS logical that, if Jay's like of Susan is genuine, she should be able to think of reasons why.**

* It's weird when looked at from only that perspective, but there's already an explanation that makes it less weird. Jay's been wanting to open up to people ("The whole point of this was I wanted a friend!") for more than half her life. A dam has been broken.

** The (technically non-existent) flaw in this test is that if manipulation of the minds were already happening, manipulation of likes and dislikes could also hypothetically occur. That doesn't make Jay's assertion illogical, but it's not definitive on its own.