Am I crazy to assume my male coworker hacked my account?

I know this may sound like I'm paranoid but I'd appreciate some input!

My coworker travels for work. Three weeks on and three weeks off. I've noticed that when he's in my city that my Facebook messenger location says I'm logged in my town for those three weeks. When he goes back home my messenger says I'm logged in his town which is 6 hour flight away for context. It could be a coincidence but I've noticed this pattern for 4 months.

He is very quiet, sweet and helpful but lately he's been completely avoiding me and acting more nervous than usual... something is off.

Why would he want access to my messenger? Is there another explanation for the location change?

Am I crazy to assume my male coworker hacked my account?
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