I have one that has been off feed since early October and a few others that are also weeks into fasting. He may be more interested in your girls if you have them in the same room (it's that time of the season). The only thing I'd suggest would be to keep offering. I'm sure he'll eventually come around. Maybe try feeding him first, that way if he doesn't take it, you could at least give it to one of the others. Good luck!