I lost one of my buddies to cancer a few weeks ago. Ghetto was an odd cat and she made people laugh every time she met someone new.
I had no intention of replacing her, but my other cat Hoodie, who never made a sound, started crying every morning after Ghetto died. I guess that was their playtime. I had to get up every morning at daybreak (not my favorite time) and play with her for a while, then go back to bed and catch a couple more hours of sleep.