walked in on boyfriend

Emily
So, today when I got home from work my boyfriend was in the shower. I really had to pee so I went in the bathroom(we don't mind each other coming in while occupied). I caught him watching porn in the shower and jerking off. He knows I hate this. We have had several talks about it and he always promises he would never lie to me about it and he never does it. I have very strong feeling on this topic. I find it very disrespectful in a relationship especially since we live together and can do things whenever we please. I'm so hurt and upset. I really don't know what to do. I know some girls don't mind there SO watching porn and jerking off so if your one of those people plz don't comment with disgrace. Everyone has there own opinions.
Thx for reading