Looking at the HH history, you are a passive player for Heads Up. You are folding too much. Your opponent is being very aggressive. He is exploiting your passive play by betting a lot of hands. You got to be very aggressive when playing heads up. I noticed that your bluffing frequency is very low. I bet you that villain must have bluffed you a lot. Against a very aggressive player you must learn to pick your spots and when you have top pair you should make him pay. Raise more often when in position to test villains hands even when you have a weak hand.