I've been training one of my pets. At first, he would go up a few digits every time I trained him, but now he's just getting one digit stat increases.

Does this have anything to do with feeding your pet or did I just get really unlucky?

Every session your pet takes you have a chance to gain 1-3 stats in whatever stat your currently training xD

Haha, okay! I guess I'm just super unlucky!! :o