I can tell how much she means to you and of course, all purparents should be. The way how you talked about her was full of love and care. I think it's normal that she gained weight or overweight because of the proper food and care. Just like human beings, we do the same but sometimes we should be conscious of our health benefits.
By the way, she's so pretty. My sister owns cats as well and I love to pat them and carry them when I went home. I wanted to bring them with me but it's quite far from home. I can't bear to watch them leave in their hometown where they grew up.
She surely does mean a lot, I love her.
I'm glad you get to cuddle with a cat now and then, there's something about it that makes a person happy, unless that person is allergic to cats of course. Do you think you'd ever get one of your own?
I'm thinking to have my own, actually, I've been looking for one for one but in my place, there is none I can find. I want to have where it's located here because I can't bear to take a cat far from where she/he lives.
I think you'll find one eventually, and will reap the rewards of having a little companion in your life.