When someone is shy, everything feels harder to read.
From the outside, it does sound like she feels comfortable with you in particular. Saying your name, choosing to teach you over someone else, stretching to hand you notes, smiling but looking down those are all pretty classic shy-person signs. Shy people don’t make big moves. They make small, careful ones.
At the same time, her cold or quiet messages don’t mean she isn’t interested. Some people are awkward online, especially if English isn’t their first language or if social media stresses them out. Her replying with help instead of flirting is actually her safe zone.
Here’s the key part: don’t push. Keep it simple and kind. Talk to her in person. Thank her. Ask for help when it’s real. If she keeps showing up for you, that’s interest just the quiet kind.
Slow is okay. Let her feel safe first.