[MikeyEdge]

I play a lot of live Heads Up matches against a friend too. Here's what I think.

Raising 9 out of 10 hands preflop is way too many IMO. And betting the pot "on almost every flop" is also way too much. Your opponent has probably figured this out and is calling your preflop raise with nothing, you bet the flop every time, and he raises knowing you have nothing. Are you sure you didn't change your style and he is reacting to you, not the other way around?

Basically, if he is more aggressive on the flop you need to tighten up. To me it sounds like you need to tighten up overall. There is no need to build the pot up every hand. If he is letting you see cheap flops, take it, and wait to hit something and take advantage. Don't be afraid to let him win some small pots. Don't let yourself get pot committed with weak hands, especially early. I don't really start raising pre-flop, if I can, until round 2 or 3.