OP, take the time to do the math in each area to figure out EXACTLY how much he intended to rip you off each month.
Definitely have screenshots of everything to hand in your phone.
You never know when you will get the chance to set someone straight.
He undoubtedly intended to deliberately completely rip you off, after convincing you to move hours away.
I think he is a very bad man.
He clearly thought you were a soft touch.
I would guess this plan grew over time.
But it shows that he is a seriously dishonest man.
I wouldn't hesitate to show the screenshots to his best friends wife if you get the chance, or anyone else.
Cold hard facts.
I would frame it as you being so hurt that he intended to use and completely rip you off, after convincing you to sell and move.
Be very strategic in your upset.
That will be far more powerful.
One hint of aggression, report to the police.
Don't tolerate for a minute and tell them of his plan.