Girls, my best friend grabbed my hand and put it around her throat, is this something you would say is normal?

I will preface this with that I am not great with social queues.

I've been friends with this girl for over a decade at this point. We've gotten closer and closer over the years but this seems a little too close? We were wrestling and fucking around like we always do. Then after we stopped we were sitting there talking in the middle of the conversation she grabs my right hand and puts it around her throat and giggles/ smiles.

I would normally think that this would be a great indicator for some interest in her end, but she has a boyfriend of almost a decade. Like I said she's never done anything like this before either. Maybe I'm trying to read into it when I shouldn't. You tell me!

Girls, my best friend grabbed my hand and put it around her throat, is this something you would say is normal?
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