honey you're not ignoring texts and calls in order to pay him back, or play games, or teach him a lesson. You are ignoring texts and calls because you don't like the way he treats you when he has been drinking, and he has been drinking.
Actually, we don't have to answer any call, from anyone ever, its not being rude or childish, its just doing what you want to do, if someone rings and you don't feel like talking to a) them particularly or anyone at all. That's fine, just don't answer.
xx