Does my flatmate like me

I’ve been at uni for a couple months now, there’s this girl in my flat that I liked but thought she would have no interest in me but recently idk if that’s true. Sometimes when we’re all going out to spoons or something she will randomly stroke my hair and neck, and she also made me download some film rating app after I mentioned I liked watching films to add her on it (idk if this means anything but my friend says it means she likes me) I feel like I’m overthinking things someone help me out