The only way I see it is to check in online or self service and make sure she is not looking at the screen. Then go to bag drop (there is no separate club world one) and then go straight to the gate bypassing the lounge that you have paid for. Or are you entitled to it anyway, with your status?
You could try calling the airline and ask to speak to special services for the 'walk through' VIP service but it would be very expensive and they are under no obligation to provide it. If it was a public service that could be purchased by anyone then it would defeat its purpose of providing a discreet shelter for VIPs.