They smell you on things you touch, like a tv remote.

It reminds them of your hands, which probably makes them feel good because your hands pet them.

The rubbing against the face is enjoyable for the reason you already mentioned - they have glands on their faces that help them rub their scent on things, so it feels good to them when their faces are rubbed against. It’s an instinctive reaction.

She’s been spoon fed her whole life. Typical story for these rich connected types.