Any apt phrase?

When a person steals your dreams (in terms of your favourite movie/novel stories/songs to which you feel deeply connected) and sells them to someone else, and the latter gives that person a deception of a lifetime. What would you call it??

Deceptive LOSER.

Of course you wanted to hide everything you are

Or else how could you deceive??

No rocket science in that,

Rather a confession to receive.