Look, honey, that discussion has been started and almost never ended for like a billion times.
In my opinion, M. handles the subject of child abuse. Though, when I heard one quote of Morrissey: "One remains a child till he gets into a relation with another one" I began to believe it was a love song as well. But lyrics like "and your mother, she just never knew etc" and " you're only three" really got it confusing again. The way Morrissey describes this whole situation, and you can't lie: he romantacizes it, makes you have another opinion upon this abuse. I'm still not sure about what it really is, but the words Morrissey uses and how he describes things in that song are really touching and moving. I sometimes feel sorry for liking it.
But hey, andy, that's what I feel when I listen to it. The greatness to Morrissey songs: so many interprations: everybody gets his share.