My cat

Hi folks, have I ever tell told you about my cat? Yes, I know! You can say: if you don't know who does? :-D.

If the last two sentences were addressed to your italki audience then they seem confused.

Well, let me start from scratch. It was 2004 when I started attending the university and in that period I moved to Bari. I was looking for a nice rental some good accommodation, and, after a lot of research, I found a nice room to rent in the center of Bari. My room-mate's name was Sergio and he owned a very beautiful cat. After three or four months that the cat got pregnant and finally eventually delivered four wonderful little kittens. One of them was very special: it was light-gray coloured with some white spots. I loved it from the first moment I saw it. Shortly afterwards, my room-mate decided to leave and he asked me what would I want I wanted to do. Then I decided to adopt it. Ten years It's been ten years since that day! In these years Since then we spent a lot of time together; sometimes she winded winds me up...,but it doesn't matter! She (can I use she for a cat when I consider it like a person?) is so tender!

Yes you must use "she" if it is a female cat and you might have used the gender all the way through e.g. "… first moment I saw her". English people definitely regard their pets as  individuals and often treat them better than humans they know.