I think this song is about someone who has been let down by another person, and they're angry and dissapointed with the person's weak will that they would let him down like that. The weakness sickens him, cause he is disgusted his friend who let him down so much, it saddens him, because he is sad he will no longer be able to trust the person, and it strengthens him because he sees that he can only trust himself, and by knowing that it makes him less vulnerable to other people who would hurt him.
I think this song is about someone who has been let down by another person, and they're angry and dissapointed with the person's weak will that they would let him down like that. The weakness sickens him, cause he is disgusted his friend who let him down so much, it saddens him, because he is sad he will no longer be able to trust the person, and it strengthens him because he sees that he can only trust himself, and by knowing that it makes him less vulnerable to other people who would hurt him.