Great video! It´s so interesting that you could have heard a song a hundred times without really listening to the words and then hearing you spitball and then go "huh, yeah that really makes sense. never thought of it that way".
The way I interpreted that "I'm rising" part and he was stumbling and couldn't handle the heat was that he couldn't handle her success and how famous she has become and how that can go into her busy business and not around TOO often and he couldn't handle it. Thats how I took it as anyway.