i feel creeped out by a certain person in my life and idk if im valid for it.

hi, im a 15 year old girl and for a while now i have been creeped out by a director in one of my activities i did at school. when i first saw this man i didnt think anything was off about him. he seems like a nice guy and funny too. he wouldn't be at every practice as he was just an assistant director. but, at the practices he was at, he started to give me very off vibes. he would look at me very often and it was in a way that made me feel uncomfortable. like my stomach would hurt just thinking about it. there were also times when i would move around the room/area we were practicing in and it felt like he would just be lingering around me. I haven't ever talked to him personally, he only really talks to us as a team, but he wouldn't look at anyone the way he'd look at me. it was like i was different. tbh im not overly pretty, im really average and theres nothing about me that i think stands out, so that makes me feel like maybe im overthinking it. but, anytime the team was in a crowded room or just all together, he could be so far away but his eyes were only on me and he would look over at me more than once. i told my friends about it but they told me i was overreacting and making it up. i have to see this same director soon and idk if i should trust my instinct or believe my friends and forget about it. another thing that makes me feel like im overthinking it is that he's married. his wife is gorgeous and she's been at a few of the practices. all i wanna know is first, is this all in my head and im overthinking everything. and second, if he is actually creepy why me?

(p.s. if u have seen a similar post before, it was because i had to delete it, im just reposting it again. im not a bot, i swear 😭)