Honey, listen to me...
Do you masturbate? It's the same thing. Even if you don't masturbate you have to realize that sex with yourself and sex with other people are totally different from each other. Just because he looks at porn doesn't mean he respects you less nor does it mean he thinks you are unattractive and it definitely doesn't mean that he would rather look at porn than be with you. It's just something that guys and gals like to do. "Self-love" is a different feeling, getting a rush from looking at porn is different than getting a rush from looking at your partner. That doesn't mean one is better or anything like that...it's just different.
As long as he is not being mean about it, for example telling you you aren't as pretty as the women in the porn, or anything like that, you really shouldn't let it bother you.
Speaking from personal experience, I have a partner that enjoys a certain fetish that I am not able to fullfill for him. He looks at porn to be a part of that part of himself. That doesn't mean we don't have sex, that doesn't mean he cares about me less...it just means that while he may enjoy being with me, he also enjoys watching porn.
You need to get some self confidence, you need to be able to look at yourself and say I'm wonderful and even though he looks at porn, he still sleeps with me, respects me, loves me and I trust him.
I think it's rediculous that you are making him promise not to look at porn. That's like a bf telling a gf to not look at hot guys in movies, or to not read romance novels, or to not eat chocolate covered strawberries just because it get's you a little hot and bothered. I wouldn't give up chocolate strawberries for the world and if some bf told that it made him jealous that I was eating them and enjoying myself without him and then told me to stop, I would walk.
In short, if you don't like it, leave, because he is always going to look at it. Let me tell you, you would be hard pressed to find a man that didn't enjoy looking at porn once in a while.