Please attach some screenshots and proof than what you have provided. Because these messages can be written by anyone and though i trust that you're not making stuff up, if you can provide proof in the
right format then people can go around to tag the guy a lot quicker.
I'm sorry for your loss, but seems like a classic confidence scam. Should have never sent first to that guy. At least you've learned your lesson now with $50, some people have to pay a much heavier price for it.
Also the token that you're buying doesn't look that good anyways, seems like a pump and dump coin to me