My Whatsapp activities are being tracked by my boyfriend. He knows every second I'm online and claims he could read my chats too if he wanted. I feel like a prisoner. My iphone has never been out of my hand, but he gets some sort of report of when I'm online on Whatsapp and whom I'm writing too he showed me. How is this possible? I'm really desperate. This isn't right, have you tried changing your password?
It sounds like he has logged in to your account somewhere, say perhaps through the web or a third party application. If you reset your password then this should sign you out of all other sessions. I'm not super familiar with WhatsApp as I don't use it, but have a poke around the privacy and security sections at WhatsApp. You can also try contacting WhatsApp directly. Tell them what is happening, and they will be able to suggest the best course of action.