I think this one is about how a girl is becoming too toxic or difficult for him to handle, and he can't take it anymore. One day, he realizes that she's just wasting time with him until someone better comes along or she dies. She's wasting her life, and because he cares he was wasting his as well. So the song is about him throwing in the towel, telling her that he knows what she's thinking, and asks her to leave before she can do more damage.
I think this one is about how a girl is becoming too toxic or difficult for him to handle, and he can't take it anymore. One day, he realizes that she's just wasting time with him until someone better comes along or she dies. She's wasting her life, and because he cares he was wasting his as well. So the song is about him throwing in the towel, telling her that he knows what she's thinking, and asks her to leave before she can do more damage.