This song is about an Incel who's thought that he's a "nice guy" and that was the key to success.
When in reality, he was a lonely guy, who realized there were times he should've had a backbone and stood up for himself, and there were times he should've shut his mouth. He realizes after years that self proclaimed nice guys really aren't so nice and he was lying to himself to make himself feel better.
This song is about an Incel who's thought that he's a "nice guy" and that was the key to success. When in reality, he was a lonely guy, who realized there were times he should've had a backbone and stood up for himself, and there were times he should've shut his mouth. He realizes after years that self proclaimed nice guys really aren't so nice and he was lying to himself to make himself feel better.