<human>: Provide a brief overview of the text.

My fiance and I have been together for a few years now. I've always know he looks at porn on occasion, but never in front of me.  I've caught him looking at it and then try to hide that it turned him on to the point he has to rub himself.  I totally get that guys are visual creatures, but what makes me angry is that he totally tried to deny it at first, then said it was an accident that he clicked on it.  Ok, I get that there are times we are scrolling through reddit and happen to just get click happy especially on mobile, but there have been more than one instance of this happening and I've confronted him about it.  The only reason I confronted him is because we hadn't been intimate in a while and I really felt like it was because he wasn't feeling attracted to me.  Especially after seeing him look at those pictures and get aroused.  We fought of course and made up.  Now, he hides that he is looking at this stuff but will still do it.  I've asked him to stop while we get back to being us, but he can't seem to do that.  It is really getting to me and I don't know what else to do but walk away at this point, because there are only so many accidental clickings I can take.  If he would talk to me about it and be mature when doing so instead of getting super defensive, I could see us getting past it.  He instead makes promises that he won't do it again and tries to turn the conversation in another direction.  I think I'm done with the lying and him hiding things instead of just being an adult about it all.
<bot>: Fiance tells me looking at porn in front of me was an accident. Promises to stop for the sake of our relationship, does it anyway and keeps lying.