My bf has a porn addiction

We were doing really well talking about his addiction everyday coming up with coping skills, how to make our relationship stronger, me being support for when he’s having a rough time. But with work and life we just got out of that routine. I haven’t talked to him about it because when I do now it’s like he puts up this wall and I feel like he just says what I want to hear. I’ve been supportive and I try to make it easy for him to talk to me about this bc I want to be someone he can come and talk to but now he doesn’t anymore. I think he started watching again and I don’t know how to bring it up or talk to him about it at this point. His porn addiction has lead to some really scary things (what he looks at wise) and I don’t want it to get back to that point. I love him and I’m not going to leave him bc he means more to me than anything but it’s really messed with my mental health and how I view myself, feeling like I’m not good enough. Even when we have sex I just want it to stop because I don’t feel like I’m what he really wants. I’m just having a really hard time and I feel like I have too much that I’m trying to figure out by myself and I need help.