Hang on, YOU think it can be done, YOU show how it can be done, that's how theories are usually tested, by putting a detailed one forward for consideration - good luck with that and not breaching this forum's libel rules!
Can partners deceive those who love them? Hell yes! Most of these headlines refer to wives being deceived, but it could work both ways;
Wife of GPML fraudster says
she knew nothing about her husband's ...
www.dailymail.co.uk/.../Fraudster-s-wife-says-knew-cad-husband-s-crim...
24 Nov 2014 -
She denies any knowledge of her former husband's crime, claiming ... 'I was totally unaware of a lot of things that Gerry was doing,' she said.
Despite Red Flags,
These Wives Had No Clue Their Husbands Were ...
allday.com/post/3835-despite-red-flags-these-wives...husbands.../2/
Completely unaware, Linda
suspected nothing when she found her husband ... his crimes, including newspaper clippings, photos, and videos; in places his wife ...
Fugitive awaits extradition;
wife unaware of husband's crimes ...
www.newson6.com/.../fugitive-awaits-extradition-wife-unaware-of-husban...
He is wanted in a double homicide in Florida and crimes in three other states McClarty, 22, was added to the FBI list just days before he was taken into custody ...
Ex-wife of crime boss
'never knew' about his gangland activities ...
www.independent.ie/.../exwife-of-crime-boss-never-knew-about-his-gan...
11 Feb 2016 - The ex-wife of a Dublin crime boss has said the city's gangs would "pat ... RTÉ's 'Liveline' that
she was unaware of her ex-husband's activities.