What will happen to my ex for tresspassing my house that I owned with an order of protection?

Trespassing in house owned with an order of protection in a house that my ex owes. He moved out 6 months ago and I pay nothing to live here with his son. I also have an order of protection against him. He comes and goes as he pleases and I finally called the cops and he is being charged with criminal trespassing. He claims he has a right to be here at any given time and goes through my things and has even stolen from me. Is this legal? Does he have a right to tell me who can be here and just walk in whenever he wants even though he doesn't reside here anymore but still owns it. He was also charged with 2nd disobedience of the order of protection. What is going to happen to him when he goes to court in 2 days?