Used you, or you allowed yourself to be used? There’s a difference.
Magick is not something for you to just toy around with as a newbie and you make an awful lot of assumptions about things without any clear understanding of what your doing.
You actually sound confused, how do you have the ability to finally move on yet want to work with demons to destroy this man as you put it?
And just for the record if a man is not into you that does not mean he’s gay, grow up!