Game: NL cash game 4-handed
Situation: I raise 0.25-1.0£ with AQo nad maniac reraises me 1.0-5.0£. I fold. He then keeps showing down J3s, T8o, K2o etc. playing almost any hand. Little later, I again raise 0.25-1.0£ with AQs and he again reraises me 1.0-5.0£. Stacks are 25£ each before the hand starts.
Do I push here?

Main question: How patient should I be and how strong hand do I need before playing back at a maniac in games like this?