Dog started growling at DP, advice?

[TooOldForGlitter]

Me again! Could use some advice if anyone is able.

Bob (5 yo greyhound) has been with us since early October last year. For first few months he wasn't allowed on the furniture. As my resolve weakened he made his way onto the sofa and is now a permanent couch dweller. He has shared happily for about 4/5 months. Until the last couple of nights. Partner approached Bob last night to stroke, as he has a million times, Bob growled. We put it down to him being tired and grumpy after a busy day, let him be and thought no more of it. He did it again tonight as partner sat
on the opposite end of the sofa. Loud growl. Much louder than last night and teeth bared.

He is in good health, only at the vets less than a fortnight ago.

Sooo he thinks the sofa is his bed now doesn't he?? I guess I need to get him off and back onto his actual bed? Or am I wrong? Advice very gratefully received.

Well, who's the boss?
Have springer here, DH out for the night, he's in, without DH knowledge, and knows it. DH is the boss.
If your DP is around for the long haul, it would be greyhound out, DP on the couch.
Simple, really.

So as not to drip feed, if I sit on the sofa he gets off and lays on the floor. I haven't done anything to make it happen but he really has picked me as the 'boss' in the house. Not boss in a pack theory way! Maybe mum is a better word

Feel like I am failing at being a greyhound owner!

Put a lead on him around the house for a day or two, if he goes on the couch, tell him to get down again, if he refuses or growls then you or husband just lead him off and give him a tasty piece of cheese when all his feet are back on the floor. There's no need for an argument with him, he's defending his favourite space but if you don't want him on there he will get the message if you're fair and consistent.

Thanks, time, will try that.