Oh I do believe it. And I believe as long as you are entangled w/him, it will continue on and on, worse and worse. Go to an attorney, get something served to him to get his crap by X date or it gets disposed of. Then, do not EVER speak to him again. That is the ONLY way you will have peace.
And explain to anyone who calls that you are not interested in where he is or what he is doing. Who cares about any drug dealers, they are a dime a dozen. Go to the bank and do what you have to do to make sure there is no more stolen money from your account. Go to the police and report it.
Move on from this craziness and give yourself some peace.