Why does he do it?
Well I guess it's only to get the attention back on himself. Normally you focus on and fuss over the bride and groom to be. With Morrissey in the room, there's serious competition.
The reasons why he's turned into an anti-holy matrimony crusader in old age are anybody's guess. I'm sure the controlling bullshiter in him could provide you with an impressive list compiled from what he has already said on the subject (from the 1984 stylee paranoia of it being a way for «governments to control you» to marriage being an exchanges of services). You yourself could take the bait and talk about his mum and dad's divorce, his dislike of breeding normality, his boyfriend, whatever. You could have a nice conversation going in circles. You'd ask «why?» he'd say «because» or give freaky arguments you'd feel the need to contradict.
That's Controlling Morrissey, ( «I'd like to control you as I try to control myself» -and fail, doh-) who needs the attention just as much as Woe is Me Morrissey. Woe is Me is there right behind and he's the one pulling the strings really, because the need to remind everyone he's a lonely sad bastard who's going nowhere and can't even rejoice for a friend is so strong, it's taking over sometimes.
Deep inside, Woe is Me knows noone is going to be fooled, but I bet over teacups Morrissey asked Katy loads of trick questions. All the while screaming inwardly «me me me, look at me!» Doesn't look like Katy bought it though. Good girl.
Must be hard to watch Russ, his fan, (an ex-junky for God's sake!) leaving his mum to get married and probably have kids. It's never really nice to watch younger people grow up before you when you thought they'd remain fickle buffons at your feet forever; is it.
Well I'm afraid it is all too clear. Everything, from butcher-like PAs to collapsing on stage to just being rude, has a very simple explanation, with Morrissey. There's a good chance this one is not far off the truth.
You wonder how he's not terribly bored with himself yet and how he still has friends.
But he got everybody's attention and once more to him it's all that matters. For a brief moment, among these lovely young happy hip people with their lives still before them, we looked at him. And Rick Astley.