Sis Tomi,
What a jerk they both are being!! You do not deserve this to be happening to you. What are they thinking by putting their children in the middle of all of this. Talk about manipulative.
You should play their game. If they want to be this way then fine, but just remember this the next time they come looking for money or a favor. Even if he is your son..tough love sucks.

Stay strong,
Jessica