So my cats were spayed a week ago. A week before that my grandma, who was their main carer, sadly died and so now my dad and I are taking care of them. The first few days after the spaying they were fine but then this week the the older cat (around 10 years old), who is also the mother of the younger cat (6 years old), started trilling at the younger one. She keeps on leading the younger cat to my grandma's old wardrobe and they snuggle there for most of the day. They never used to do this and I'm really confused. They seem to be eating, drinking and using the litter tray normally. Are they just sad after my grandma's death or should I be worried? Also, the younger cat has become very affectionate (he was only ever affectionate towards my grandma and not to me) and both have started to play during the morning which is new. They also keep on meowing excessively at me and leading me around the house which is also new.