How does it make you feel

After watching the video from the song "How does it make you feel" I got to this conclusion. What I interpreted is that at the beginning, when it shows the girl´s parts getting together, what I think is that it refers to the girl just reforming after the relationship she had with the man who is singing, but he says that he misses her and that he is a bit disastrous because he smoked a lot which was really affecting him, but when he talks about he and the girl, he says they are wonderful together, and that being with her was the solution of his problems, an innocent girl who he wanted to be with more than anyone.