I think this song is about an affair with someone she is deeply in love with. He was the lie. They broke it off but loved each other and he resurfaced, and they were discovered by the other person she was in a relationship with, and it destroyed that relationship. That's the house that caught fire. Maybe it was a beautiful, intense affair that she followed him into and was only supposed to be for a period of time, and when he returned, or they couldn't stay away from each other and she was found out, she felt sorrow for the man whose heart she broke, but inside she was grateful because it allowed her to be with this man, who she truly loved. The part about the deer is her ex, whose heart was broken and wanted her to come back, but she couldn't.
I think this song is about an affair with someone she is deeply in love with. He was the lie. They broke it off but loved each other and he resurfaced, and they were discovered by the other person she was in a relationship with, and it destroyed that relationship. That's the house that caught fire. Maybe it was a beautiful, intense affair that she followed him into and was only supposed to be for a period of time, and when he returned, or they couldn't stay away from each other and she was found out, she felt sorrow for the man whose heart she broke, but inside she was grateful because it allowed her to be with this man, who she truly loved. The part about the deer is her ex, whose heart was broken and wanted her to come back, but she couldn't.