Relationship Help!!

Hi guys. I’m in need of some guidance. My boyfriend has come to realise his porn addiction (4-5 months ago) and has begun a reboot in a relationship. We are still intimate throughout this. He communicates that his love tank is empty, that despite reaching climax 1-3 times a day he finds our sex life boring, fantasises about other girls, doesn’t feel wanted by me. I’m very confused. We have started trying that only I initiate intimacy. When I do initiate he feels fantastic for a few hours before retreating into a ‘waiting for the next’ time to happen. If I don’t initiate fast enough, then he will initiate and then say that because I didn’t interpret his need, it therefore doesn’t count towards himfeeling loved by me. I understand wanting to feel wanted by me so I do my best to fulfil this. I have expressed that I feel like a substitute for pornography to which he agrees (usually when angry). But then doesn’t want to look at ways he could improve in his attitude or in the way we come together intimately.
I feel like a failure and then on the other hand, angry because I feel like I give a ‘service’ and that we don’t build intimacy, just please him.
Any feedback/advise on what to do from here would be appreciated.