Husband sides with son about everything

[Susiy]

Hi all,
looking for some advice.
My DH systematically sides with our teenage son on everything and contradicts me on any matter relating to our son.
He recently told me in no uncertain terms that no-one listens to a word you say.
I'm fed up.
I feel he is using our son as a pawn to get at me or as a power play.
At this point I want to leave both of them to one another.

8 weeks? And still no difference? That's got to be soul destroying.

Don't apologise for sounding depressing. I go around d in the same circles all the time.