There is nothing wrong with employees dating. Nothing good, however, comes from a boss having relations with a subordinate employee, especially one who is a direct report.
If you believe that an employee is abusing FMLA leave, build your case. Uncover enough facts to support your belief that that employee is committing fraud.
The time has come for Congress to step up to the plate and enact legislation including sexual orientation and gender identity as protected classes, and bring to and end the shameful protection of discrimination against this marginalized class of individuals.
Perhaps one solution to this crisis is for Congress to engage in some simple oversight over the agencies that enforce our various laws, including the EEOC. $751,942.48 in taxpayer money is a costly investment to chase a fool's errand.
Proving a negative is the most difficult position for an employer, and, often, the most expensive for an employer to defend.
If you have active matters with any federal agencies, expect for them to be on hold. Please remember that while the EEOC and other agencies might be temporarily out of business, the laws that they enforce are not.