strange feeling

Denise
So with all my relationships I inevitably start getting uber paranoid that my guy is cheating on me and become a wee bit obsessive and start looking into everything and convince myself that he's cheating. 
Well this new relationship is no different except my boyfriend stays with me most of the time. He likes to look at porn occasionally and I feel the need to know every little move he's doing to make sure he's not messing around. If he deletes a text, I want to know why. I want to know what he's looking at, I want to know everything!! 
Help!!!!