Help. Boyfriend was voted "Biggest Flirt"?

So, at my high school and other high schools around, we would have things called "Senior Superlatives".
Things like "Most Likely to Succeed", "Class Clown", "Most Likely to End Up On a Game Show" etc.. And his school had one that was "Biggest Flirt".

I wasn't dating him when he was in high school, and he's been graduated for almost 4 years and we've been together for almost 2. But he did get voted for the biggest flirt in the yearbook along with another girl. I didn't know until I recently saw his yearbook.

Am I just overreacting about this? Bc it made me a little uneasy. Is it silly to get upset at something like that?
Help. Boyfriend was voted "Biggest Flirt"?
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