I think this song is about just one man and one woman.
The guy singing is involved with a girl that leaves the men she's with after she "saves" them.
She only goes after men that need her to fix them.
So when she falls for the singer he doesn't believe her and keeps saying our relationship isn't special and she's exactly what she was to all those other men that she was to him.
So eventually, she becomes depressed and leaves and that's when the singer realizes that she wasn't there because she thought he needed fixing, she was with him because she loved him.
I think this song is about just one man and one woman.
The guy singing is involved with a girl that leaves the men she's with after she "saves" them.
She only goes after men that need her to fix them.
So when she falls for the singer he doesn't believe her and keeps saying our relationship isn't special and she's exactly what she was to all those other men that she was to him.
So eventually, she becomes depressed and leaves and that's when the singer realizes that she wasn't there because she thought he needed fixing, she was with him because she loved him.
And he feels bad because he broke the fixer.