 I saw all his messages about girls he wanted to fuck (we are in an open relationship). They were all hideous jokes and were extremely horny such as "i'll fuck her so good we'll exceed the total of the pleasure taken by all people that had sex" or "i'll make sure her mouth stays full". 

Now I'm extremely disgusted. I don't know if he says things like this about me  but I'm both jealous and disgusted. I didn't think before this level of hornyness. What should I do?? I want to forget all that I saw he is such a horrible being now in my eyes. I love him but this makes me feel sick. 

ps. i know it's very wrong to look at his phone but trust me i had the right to do so please don't comment on that.