The burden of performance will always be with men. Most women feel this way... this one just admits it.
The way you counter this is not to worship women. Go ahead and be the best man you can, not to get chicks, but because that is the best way for a man to go through life and really the only thing that brings you long term happiness. The positive side-effect to chicks will find you.
If she thinks you value sex with her more than your own well being... it will always be dangled if front of you like a carrot... or used as a stick when you aren't doing what she wants. You have to have the attitude that if she is using sex as a tool, that you will just go elsewhere.
I had a friend of mine in college who had a girlfriend and they were actually a pretty good couple... one day after a party, he did something... I honestly don't remember what it was.... But she told him, "No sex for you tonight!" He looked at her and said "Well maybe not with you." and walked out the door. Two weeks later, she was back and later they got married and have been married for 30 years.
A couple of reasons this worked for him. 1. He was an awesome guy, very ambitious... actually today he's worth a butt load of money and runs an investment firm. He did and still does take care of his body and health. 2. He was ABSOLUTELY serious... if he didn't get what he wanted, he was willing to walk away and MEAN IT. So don't think any dude can do this... she has to value you and be fearful of losing you, and she has to believe she can't do any better than you. But even if she doesn't give a fvck if she loses you this is the right way to be... it's much better to leave sooner rather than later, then to live a life where a women is using her body as a weapon against you.