Potentially creepy and possessive but..
Imagine someone filled your inbox with strong bs and you fell for it. Then all of a sudden you found out you had some power to see everything they did on social media, would you want to see? Surely the truth in their words can be measured by their actions? You'd be able to see how much they meant what they said. I only had one argument with someone who claimed to find me very attractive and that was it. He said strong stuff that seemed to fade way too quickly. I'd love to know what this person was actually up to.