The insider told Perez, “Wentworth and Luke have been secretly dating for almost six months now. They’ve been very quiet about their relationship, obviously, as Wentworth is not out of the closet.�

Miller and McFarlane have become very close and are considering moving in together, reports Perez. McFarlane recently went to Asia with Miller when he had to film some commercials. Says the snitch, “They spend a lot of time at each other’s houses. Wentworth has been pretty reclusive since he’s become famous and he’s been even more of a shut-in since he started dating Luke.�

The stress of keeping his relationship under wraps seems to have gotten to Wentworth. A source at Fox says, “Wentworth’s become very difficult to work with. He’s been cutting back immensely on the amount of press he’s doing for ‘Prison Break.’ He’s very nervous about reporters asking him if he’s gay.�