My ex-spouse is harassing me with emails and text messages. This ex is saying very mean, nasty things and calling me names. It just won’t stop. I hate to give up my cell phone number and my email address, as it would be quite complicated to change. I feel threatened. It’s like I am being followed all the time. My ex always seems to know where I am. I still have my cell phone from the marriage. Is it possible there is something planted in the phone? What can I do?