Chad Johnson is stalking and harassing ex-wife Evelyn Lozada online, according to the Basketball Wives star, and she's warning him to stop or else.
Evelyn fired off a cease and desist letter to the former football star after be tore her a new one on Twitter with crude remarks about her alleged cheating.
Ev wants a restraining order if he doesn't STFU ASAP.
Lozada says Chad's Twitter allegations are 100 percent false, and that she never cheated on Chad during their relationship, which ended last year.
The same, obviously, can't be said for him.