Okay, so I tried playing with my Cyndaquil, and it got angry at me two times. After it evolved, it hasn't changed! I used all my Poke'puffs! Please help me! (If this helps, its personality is "hates to lose") (Omega Ruby)
In Pokemon Amie/Refresh, be careful where you attempt to touch, and stick to petting Pokemon where they particularly enjoy being petted. Listen for the rubbing sound to be high pitched, and pay attention to their expressions where possible.
source As for Quilava, they like being petted on their feet and particularly dislike being petted on their forehead.