When I went to live with my dad and stepmom as a teenager, I took my dog with me. While I was living there, my stepmom got a young kitten whose mom had been ran over. The kitten was brought up with the dog, and the two of them were excellent friends, always playing and snuggling together. My grumpy 15-year-old dog even shared my bed with the rambunctious cat...
This went on for two years. Then I had to go back to my mom's for a month, to study for my final highschool exam, and my stepmom told me the dog and the cat had been roaming the appartment for a month looking for me, and sleeping on my bed every night. I came back for the summer, then moved for good in September to go to college, once again taking my dog with me - he was going to stay with my grandmother, since I could not have a dog on campus, and she would not take the cat with him (plus it was supposed to be my stepmom's cat).
Three days after I moved, the cat, who never went further than our balcony, ran off and disappeared. My dad and stepmom looked for her everywhere, posted signs, called shelters, cat people, patrolled the streets in the car calling for her... they did it for a whole month, but we never found her again
I just hope she found herself a nice home with a friendly little dog, and nothing bad happened to her... sweet Minette