I add the commas in between to make it clear. It is 3 nouns put together with no verbs. If you look at the MTV of the song, you can clearly see that is what it means. So it is another way to say I don't think I love you any more. Clever.
2012-01-23 17:35:58 補充:
If you don't see it yet, watch this
I heart question mark
I ♥ ?
"my" is the possessive form of I.which belongs to the song-writer.May be used in exclamation to express surprise etc. Or used when showing affection in show business.Or he considers audience have a lower status than him.
"I" used as subject;who knows?