The jerk will keep asking as many as possible woman to date, and will push for what he wants as soon as possible. If you come across many women on an ongoing basis, and approach all of them that you consider the slightest bit attactive, then it is simply a matter of time before you score.
But the key issue is not to stop asking new ones. Keep the current one for occasional sex, refuse to commit to anything that is not immediate pleasurable for you, and keep trying for new ones.
Always have the excuse that you are running out on a business meeting, etc, to show both how important you are and while you really want to commit, it would be unfair to her since you are never around.
After a while, you've built up a list that you can called upon as desired.