Club senpai used ‘anata’ with me how should I interpret?

I'm living in Japan as an exchange student right now and I joined a club in uni about a week and a half ago. Last night I went drinking with the members after club activities and my senior (by about one and half years) used anata with me while explaining the rules for a card game. She does know my name too. Is it a form of distance, does she actually dislike me, or am I just needlessly worried lol.

She's a very friendly/sweet person and I hope its not some one sided friendship on my part lol. Lmk if maybe this is a question for the japanese language sub, thanks in advance!

by squidzy_y