It tends to follow a script: your partner sits down next to you, your cat appears, wedges herself between you or onto your lap facing him, fixes him with a stare, and — if he leans in, reaches across, or simply stays — delivers a swat, sometimes with a hiss for emphasis. It is easy to laugh it off as jealousy, but what the cat is usually protecting is concrete: her place next to her person, at her preferred time, in her preferred spot. And from her point of view the behaviour is successful, because the swat reliably makes the partner pull back, move seats, or leave the room.
What resource guarding of a person looks like in cats
Cats guard people the way they guard a favourite sleeping place or a food bowl: by positioning, staring, and escalating only as far as needed. Early signs are subtle — arriving the moment your partner sits down, orienting her body toward him while appearing to relax, tail tip flicking while she purrs, pupils wide. The swat is a later line in the conversation, often with claws deliberately in at first, which is communication rather than an attack. It can also flare from over-arousal: a cat who is being stroked by you while wound up about his presence may redirect onto the nearest hand, which is his. Either way, punishing the swat teaches her that his presence predicts trouble, and makes the next warning quieter and the bite, eventually, more likely.
Changing the payoff so guarding stops working
The household rule needs to be simple and identical from both of you: guarding behaviour makes the guarded resource — you — briefly vanish, not the partner. When she postures hard, stares him down from your lap, or swats, you calmly stand, set her down if needed, and leave the room for a minute or two, without scolding, fussing, or immediately resettling with her elsewhere. Your partner does not retreat, argue, or push her off; he simply stays uninteresting. When she is settled near both of you without guarding — lying relaxed, back turned, slow-blinking — that earns quiet praise, a treat from your partner, and the evening continuing. Consistency matters more than intensity: the pattern dissolves when guarding stops buying her anything, every single time.
Making your partner a source of good things
In parallel, transfer some of her best experiences to him. For a few weeks he becomes the person who feeds her meals, delivers the favourite treats, and runs the evening play session — initially not on the contested sofa, but in the kitchen or hallway where there is nothing to guard. Short, positive contact on her terms helps too: he lets her approach, offers a cheek scratch if she solicits it, and stops before she is full. The goal is that his arrival in a room starts predicting food and play rather than competition. Keep a second, equally good cat spot — a bed or blanket on the other end of the sofa or a nearby chair — warmed and rewarded, so she has a winning move available that is not your lap.
When guarding points to something else
Book a veterinary visit if the behaviour is new and sudden, if she guards only when touched in a particular place, or if she is also hiding, eating less, or snapping at you — pain, including sore joints or teeth, lowers a cat's tolerance sharply and sofa scuffles are often where it first shows. Seek behaviour help promptly if swats become bites that break skin, if she begins ambushing your partner outside the sofa context, or if anyone in the home is becoming afraid of her. Bring notes on when it happens and what precedes it; that pattern is the most useful clue you can offer. KinsLe Family Sharing helps you and your partner stay on the same script by sharing the agreed response, his feeding and play duties, and notes on her progress on her profile, so she gets one clear answer from both of you.