2 weeks ago I started an internship and was welcomed very warmly by the team. In the second week, my supervisor, who was always very friendly and talkative, showed me around and tried to have small talk with me (which I'm not very good at). Directly after our walk his mood suddenly switched from chatty and upbeat to slighty annoyed. Two days later I saw him smiling at the coworker next to me and then giving me long dirty looks. Later that day, he did not hold eye contact with me anymore and rather seemed to look through me. I am very confused with his behaviour and don't know what he thinks of me.
Does anyone have any idea what I might have done wrong? The other coworkers I talked with are very happy with my work and don't know why he is upset with me.
