She's out all night.
Sometimes she comes home for dinner, sometimes not. She turns her nose up at the food on offer.
She is rude to visitors and completely ignored the friendly amazon delivery man.
She often smells of someone else's perfume.
She's 'misplaced' her collar.
She used to be so affectionate.
This new attitude of hers all started after we took her to the vet last week.
She's cheating on us with another family, isn't she?