Cats, unlike dogs, rarely openly show love for their owner.
But it's not that difficult to understand that your cat is happy with you and her life.
First, pay attention to how the cat greets you after separation.
If your pet runs to the door with its ears and tail raised, it means it's bored.
Secondly, a cat that is content with life will not avoid communication with its owner, will jump on its own lap, rub against its legs, etc.
Thirdly, a happy cat will not refuse to play with its owner. And if the cat brings you its toys itself, it simply adores you.