Hello. Actually, there is a way out of this situation. Since watching porn is a habit, you can replace it with real sex. You can also talk about your desires with your boyfriend and explain that you continue to love and want him, but you also like the extra stimulation of watching porn alone. But I also have some not so positive news about the consequences of frequent porn watching secretly from your partner. You can read here about them here and learn about all the nuances that you are worried about this situation.