Whenever your efforts to initiate intercourse are rejected, get dressed and leave the house for at least a couple of hours. If she asks where you are going, just respond almost as if you are excited about it, “Out for a drive. You get some sleep. Sweet dreams.” Kiss her on the forehead before you go. The goal is to give her room to doubt her hold on you or at least on your lovemaking. Could you be seeing someone who won't deny you? Is she at risk of losing you? Simply plant this seed by allowing for the possibility in her mind. At some point, you might even stay out all night. (You can sleep in your office). Then if she questions you, simply state, “You were so tired; I didn't think you'd even notice I was gone. I couldn't sleep so I went to the office to catch up on some work.” This should be true by the way. A nervous woman is more likely to take risks in opening herself up to intimacy and abandoning some control.
Never give in to temper tantrums. When she gets bitchy, ignore her completely. If she has PMS, however, pour her a glass of water, hand her two Midol PMS pills, and say, “I love you even when you're all PMSy.” Then ask her if she'd like some cuddle time. Honor her request.