They should at least show his addiction getting out of hand or something to make it more believable.Tommy was pissed at Ghost because of all the lies he thinks Ghost has told him. And because Ghost wanted him to kill his father instead of the Italians. But, yeah, the thing with the tape was unlikely. But Tommy is a paranoid cocaine freak, so who knows. He was ready to kill his new girlfriend for some stupid shit. The writers have run out of ideas.