Should I worry if my wife is flirting at the gym?

I found out while she lend me her phone to search something online. I didn't snoop around, I opened the browser and there it was, a google search about how to flirt with your gym crush. I off course didn't say anything and didn't make much of it at first, but now Im not sure if I should worry.
Should I worry if my wife is flirting at the gym?
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