Has he ever trapped you in a room and not let you out?
Has he ever raised a fist as if he were going to hit you?
Has he ever thrown an object that hit you or nearly did?
Has he ever held you down or grabbed you to restrain you?
Has he ever shoved, poked, or grabbed you?
Has he ever threatened to hurt you?
If the answer to any of these questions is yes, then we can stop wondering whether he’ll ever be violent; he already has been.