My girlfriend snaps other dudes, what should I do?

Hi, So im mexican and we dont really use snapchat here, no one even has snapchat on their phone anymore, so thats what makes me question it, so i was on my GFs phone and i accidentally scrolled up and saw the notifications, and it said that a man had snapped her, and it was a guy from the us, i didn't enter the snapchat app or anything i just tried to act normal cause she was beside me, but that really got me, i dont know if im just overthinking it or i should ask her about it.

My girlfriend snaps other dudes, what should I do?
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