You handled yourself superbly when your WAW probed about your plans to go out. Give vague responses when questioned, so that there remains a degree of uncertainty in her mind about what you're really up to at night.
As for the snooping, you know it's not a good idea. I was the same way for some time and believed that it was better to know the ugly and unsettling truth than to remain blissfully ignorant. Choose the blissful ignorance.
