Originally Posted by Suicune™
Hey, I noticed you said, you constantly use potions and bam a level 23 crobat, do you use potions when the hp is at maximum and how many does it take?
I don't know how many I used; I think I used about 9 Potions, but I had my Golbat since level 2, so I'd won a lot of battles with it / walked a lot with it. Judging its happiness was difficult, and I was lucky.
It depends on how long you've had it. There are factors that influence what makes a Pokemon happier, you can Google them.