Is it weird for a guy to follow you on insta?

There is this guy that I know of but never talk to. We don't have each others phone numbers and we don't have any mutuals either. I went to a bonfire two days ago and he was there so I talked to him throughout the night and then I checked my insta the next morning and he followed me. I just find it kinda weird bc I don't know how he found me. Any thoughts?

Is it weird for a guy to follow you on insta?
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