Kimee's pet caterpillar

I found a little green caterpillar in the garden and showed Kimee. It immediately became her pet. She talked with it and played with it a lot. We found some weed leaves that it really liked and it ate a lot. Then it curled up into the leaf and either became a cocoon or died. We are waiting to see. I guess I shouldn't call it and it, because Kimee says it's a she and her name is Greenleaf.