Is my girlfriend cheating with Verizon phone?

My girlfriend has a Verizon phone and I Have Sprint. Can anyone that has Verizon tell me if there is a way to see what pictures are sent to or from my girlfriends Verizon phone other than the I know that with Sprint any pics I send or receive are automatically uploaded to my online album. Is there anyway to get this info for a Verizon customer if they are not on the VCWPIX website

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