It sounds like he's ready to just give up after a bad breakup. "Gone away" "I don't have anything" suggests that he doesn't have anything to keep him going anymore. "I don't hide in sanctity" means that he won't hide in the church anymore. "I don't need the space to breathe" he's referring to the space that she used to take up in his life. I don't need the space to breathe. But then that would mean that he's learned not to need the space where she used to be. Maybe he's left emptyhanded but learning to cope with it.
It sounds like he's ready to just give up after a bad breakup. "Gone away" "I don't have anything" suggests that he doesn't have anything to keep him going anymore. "I don't hide in sanctity" means that he won't hide in the church anymore. "I don't need the space to breathe" he's referring to the space that she used to take up in his life. I don't need the space to breathe. But then that would mean that he's learned not to need the space where she used to be. Maybe he's left emptyhanded but learning to cope with it.