I'll post some pics when I'm home, but any advice?
I have two cats, both neutered.
Jess, approximatley 3 year years old, around 3.5 kilos and Oscar approximately 4 and a half years old, 4.5 kilos. I've had Jess for two years and Oscar for about 6 months. They've never been pals, but they could tolerate each other, however recently Oscar has started to get more bullying - taking Jess's chair, blocking her access to other spaces (though not food, and he never stops her from eating his food instead of her own)
He's more boisterous and tries to play fight, which I think Jess interprets as real fighting.
Any advice on getting him to calm down and give her some space?
I'm going to be plugging the feliway diffuser back in, and trying to shoo him off her chair when I see him there, and I try to distract him with toys if I notice that he about to pounce on Jess (which always works and is why I think he's trying to play rather than real fight - I'm guessing a cat intent on actual violence wouldn't be as easily distracted).
I don't want to have to rehome him, as I like them both but Jess was here first (and he'd have an easier time being rehomed due to being ginger and quite charismatic rather than Jess who is black and white and a little bit bitey)