So you'll push when you think you are ahead and he calls? So you are giving him 2-1 odds to make a call when he only needs one card? You do realize that a call on a 4 flush on the flop only needs 2-1 odds to be a good call right? Add an OESD and he'd be wrong to NOT call.

Sorry man - but it sounds to me like you are not quite the poker player he is.