How can I stop being jealous about other women's feet?

So, I am not a jealous person, I hate when people are jealous. But I’m starting to become one myself. I found out my boyfriend has a foot fetish, I do everything to show him I’m okay with it, which I am, if only my feet were enough to ‘satisfy’ him. I found foot stories from girls in his facebook inbox. I realize I should not have looked in the first place, but he started acting a little shady and turns out I was right. I know its not cheating but it is comparable and I’m hurt. Were trying to work it out and I’m trying to forgive him (I have a hard time forgiving) but I get angry when he looks at other women’s feet. It is driving me crazy and its at the point where I would rather a girl strip down naked then them take off their shoes in front of him. A little extreme, yeah but I’m just driving my self insane thinking about this. How can I realize I’m the one he wants, and loves. How can I forgive him? Hes a great person, I know that he loves me, I just am feeling crazy.