Thanks a lot Amy. Certainly the kids are worth the extra. Because W lives elsewhere, I don't really have much contact with her beyond the nightly call to talk to the kids. For some time, I've been dim. I don't ask her about what she's doing and I certainly don't share with her what I've been doing. For example, I've gone out with friend or by myself one day every weekend for the past two or three months, but, I haven't said a word to her. She may suspect because the kids will tell her that Grandma came and spent the night, or that we went to see Grandma and spent the night, but, I don't say anything. I've had job interviews that I haven't said anything about. One of the things that is tough right now is that she is receiving a decent amount of financial support from me as her job doesn't come close to supporting her. She pays for rent, utilities, food, and gas and I basically cover everything else, the car payment and insurance and health insurance and cell phone etc. I go back and forth on this one. I believe what I'm spending now is much less than I will pay in maintenance and child support, but, it does feel like I'm supporting my own back-stabbing.
I will definitely give some consideration to the bluff you ran and see if I can pull off a similar feat.