Porn and husband

Please, I only need support right now.

I just found out that husband watched porn again. He hadn't (to my knowledge) in a long time. I found it on his Kindle and I confronted him about it as soon as I found it. He knows that I hate porn and that I truely see it as cheating. I've seen what it can do to relationships and I don't want that for mine. I don't care if you don't see it as cheating or bad in a relationship, I do, and that's all that matters. I have been having severe depression issues lately. I've had lots of deaths last year and never got time to process it when the next thing would hit. It's really messed me up mentally, but I have maintained a great relationship with my husband and our sex life is great (I thought it was)... Anyway, he got all defensive and tried to tell me he reset his Kindle and that the Kindle brought up the porn sites. There were like 7 different sites and a few were very specific. I do not believe him, even though I desperately want to. There is just no way the Kindle brought that up and only porn. It makes me feel like he thinks I am a complete idiot! I feel so betrayed!! I told him I am here and willing to try and play out whatever he wants!! I guess I am just too fat or unattractive for what he truely wants... I just don't know what to do. I just can't take this. I don't know how to handle any of this or anything. He swears he didn't, but how else would it get there? Please, what should I do. I just can't believe him, there is no way the Kindle did it.