Bf said I’m codependent

So my boyfriend told me that I’m codependent but i don’t think i am. He seems to believe that he’s the only source for my happiness and that i need a lot of reassurance and that it puts too much pressure on him. Idk what to do. I don’t feel like i do any of that. He brought this up a month ago and i quickly changed what i could and what he said would help, but he’s continuing to read more reddit posts on this and brought it up again yesterday which means i haven’t changed or he hasn’t seen that I’ve changed/am trying to change. Any advice? I’m really upset right now