I'm 18 and I'm unsure if my relationship with my classmate, who is also 18, is purely platonic or if she’s interested in something more.

I'm an 18-year-old male, and I'm feeling a bit confused about my relationship with a female classmate who is 18. We often have nice conversations, but recently she's been asking me if I plan to attend the upcoming school dance. While she’s going with some friends, she also inquired about who I might want to go with, and since I don’t have many female friends (being more introverted), I didn’t have an answer. She even suggested that I could invite her to the dance. I’m not great at reading between the lines, so I’m uncertain whether she’s being friendly or if she’s hinting at wanting to go together as a couple.