Could be a coincidence.
Would seem Strzok was more into his girlfriend.
That last sentence has a double meaning.
Perhaps the wife threatened to 'take him to the cleaners' over his affair with the girlfriend, so he bought her off with the SEC appointment.
"Monopoly - The Swamp Version, for GS-15 and above"
Strzok - "I'll trade you Director of SEC Enforcement for one signed Non-Disclosure agreement"
Wife - "Throw in a Townhouse in Georgetown and I'll sign, as long as you are packed and gone by the weekend."
Strzok - "Deal!" ["Heh, heh, she doesn't know that Bill & Hill have offered me a 'Consultant' position for the Clinton Foundation!]