NSFW My bf watches p🌟 but lies about it (rant)

So my bf(19) and me (19) have been together for 4 years. At the beginning he had a really bad addiction to porn which I thought had gotten better to the point of him stopping (only as of recent I thought he had stopped because of him communicating that to me, I understand addictions are insanely hard to get over so when he told me I congratulated him through a lot of support). I had to use his phone for something as mine was dead and I saw in his search bar a bunch of porn searches, even games, and ai photo generators. The worst part is he’s been searching up a p🌟who is famous for being an influencer but also makes content on OF, I had even met her before and gotten a photo with her, and now he’s jerking off to her? I will admit at first I was insanely jealous and insecure about him watching porn, I only recently found out that it was normal for guys to watch porn in relationships, but I didn’t think this amount was normal. I have talked to him multiple times about my boundaries and the topic and he either makes empty promises or just straight up lies to me and flips the whole thing to where I’m the villain. I don’t know what to do because we are literally going engagement ring shopping this week but this has become such a big issue in our relationship, and every time I bring it up to him he always makes it seem like he couldn’t care less about the fact that it made me upset/uncomfortable. I do just want to reiterate that I now understand it’s normal for guys to watch porn in their relationships, and since learning that I have become less insecure but it’s just the fact that when he watches it he always searches up certain p🌟s and he’s in multiple reddit groups that post that content, I’ve discovered he watches it at least once a week. Again this was just a rant to get it off of my chest just because we have such an important step coming up in our lives and I’m just trying to work through this issue that seems to only affect me.