Am I overthinking this?

So this girl im going to talk about is my college friend. From past few days i have noticed that she keeps walking in front of me, not really in front but she is always walking faster than i am and not beside me or with me. Other weird thing is that she does it in college campus like we are walking in corriders. She always walks beside me when we are not in campus. It kinda feels like she doesn't want to be seen with me or feels like she embarrassed to walk with me. Im not ugly guy but an average looking one. By the way we dont have feelings for each other we just hangout as friends. It is really bothering me. Has anyone ever experienced this before?
Am I overthinking this?
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