Fulton County District Attorney Fani Willis has been accused of having a romantic relationship with a top prosecutor in the case against Donald Trump. Mike Roman, who served on the embattled ex-president’s 2020 reelection campaign team, made the allegations on Monday but failed to provide hard evidence to back up his claims, RadarOnline.com has learned. In the court papers, Roman’s lawyer said “sources close” to Willis and special prosecutor Nathan Wade claimed the pair had an alleged “ongoing, personal and romantic relationship.” “The instant Motion is not filed lightly. Nor is it being filed…