Trying or Lying?

At home my husband has been spending less time on his phone...at least when Im awake. He has been mostly respectful, affectionate, loving...even in the face of my semi resistance to believing it. Narcissist love bombing I learned later. Trust takes time I thought ...and we are still in two steps forward one step back mode. But I still run into the porn roadblock..this often makes me think I am just missing some of those roadblocks. There was the instance where my young daughter told me he was looking at women before I took the kids to drop them at a football game. While they were gone I retrospectively realized  he was horny from looking at porn-not me. Then last night...he was soooo tired he could barely stay awake. My daughter fell asleep on our bed early so he decided to crash in our spare room rather than disturb her...and he said he was exhausted...yet the glow under the crack of the door showed he wasnt too tired for one thing! I opened that door...down went the phone. He didnt click off the page though and instantly said he was looking at porn. He was also using his incognito browser option...I told him the only reason to use that is to hide it...which is lying. He claims to only be looking once in awhile...that it had been weeks...and yet its in my face daily..and thats just what Ive been slapped in the face with. So is he trying...or lying? Either way knowing my husband is laying in the spare room perusing dirty pictures of other women is the ultimate turn off. So back a step we go...at the very least sexually. Just when I was considering putting my wedding ring back on. I never would have guessed I would be such a gullible fool