When you talk to the police again, tell them its extremely stressful for you and its harassment. Tell them his violent history. Tell them the amt of texts, videos, etc you get each day. Tell them you are scared. Use your body language and your voice to be assertive and express yourself. Try not to be passive with them or shrink back. Don't apologize or be apologetic. You have every right to be there. Have a friend or family member come with you if that might help you.