<human>: Condense the text into a few key points

He used to look sometimes when he was younger, before we started dating, but said he never really liked it and felt much better about himself since he stopped. I don't like porn at all, have never used it and find most of it quite off-putting.

I did ask him in the beginning to stop it but I never forced him, he gladly stopped and it has never been a problem for any of us. But lately he seems to end up there anyway. We have been together for a year and feel more in love than ever, just came back from a weeks holiday where we got engaged. But we had a couple of smaller arguments when out drinking back home and when I left the house the next day after the first fight he was still a little bit drunk, hungover, horny and a little annoyed with me, so he went to NSFW stuff and fapped. Felt immediately guilty and disgusted and told me straight away (we are very honest with eachother), said it will never ever happen again. Only one week later he did it again, same situation, but it took him two days to tell me, even when I asked him straight up if he used sexual imagery whilst fapping and he said no.

I don't know what to do now. The worst part is that he lied to me, it feels difficult to be able to trust him again. If he wanted to use porn I can not stop him, but he doesn't even seem to enjoy it, one part of the brain says NO and the other one is looking for the excitement, and then afterwards he feels like shit. What can he/I do when he get the urges?
<bot>: My boyfriend has after a year together started to use porn when fapping, even though he feels shit about it afterwards.