I agree Silver, stop taking the phone calls for a while, heal yourself!!!!
You have a signed lease, there is nothing they can do (legally) to force someone to live there. You have every right to say NO.
I'm glad you are angry, you can fight for yourself that way.
I've had to stop communication from members of my family and friends because of similar behavior.
Don't let their actions upset you. Take care - we are all here for you. K.