I’m not what to do

Hey, I need some advice as to what to do! My boyfriend and I recently had an argument and he said he’s leaving if I don’t fix the issues that we’re having. I really care about him and he is the love of my life, we’ve been together for a year and a half and we want to get married. However, he says I don’t talk to him enough, he wants the kind of passion and heat that he sees in movies and tv shows. He also says he wants me to be more confident when speaking to him and talk like I know what I’m talking about. I thought I was doing that and feel pretty happy with myself, but how can I do this more? I’m not really sure how I can give the first thing to him and when I ask him, he tells me to figure it out. Any suggestions as to what I should do? My heart is breaking because I apparently can’t seem to give him what he wants and I just want him to be happy.