I think that it's a relationship that is heavily strained, and he knows that he hasn't lived up to what she thought he was. The second verse I think is indicitive that he is comfortable and accepting when they hurt each other because the pain is what still connects them. The Chorus I think is talking about how they are strained by lies and dishonesty and that they are finally going to find the end. For good or bad.
I think that it's a relationship that is heavily strained, and he knows that he hasn't lived up to what she thought he was. The second verse I think is indicitive that he is comfortable and accepting when they hurt each other because the pain is what still connects them. The Chorus I think is talking about how they are strained by lies and dishonesty and that they are finally going to find the end. For good or bad.