Cut and Pasted from (trans biased) wikipedia. Posted without comment, but my bold. Apologies for the miss-sexing.
York married a French woman, Sylvie Transler, in December 1985. No one from York's family was in attendance, nor any team-mates, who had no idea York even had a girlfriend. Panasonic team-mate Phil Anderson commented that she, "didn't seem to have the skills for getting on with men, let alone women". The couple were believed to have separated by the late 1990s.
As a cyclist, York had a reputation for being taciturn and could be uncooperative with the media. Jeff Connor, author of Wide Eyed & Legless: Inside the Tour de France was told to "fuck off" when requesting an interview during the 1987 Tour de France. When told this, commentator Phil Liggett replied, "That sounds like Millar, he's been really awkward with us in the past. Personally, I think it's a disgrace. He has a duty to his sponsor to represent the team and you don't do that by telling journalists to 'fuck off'." During commentary for Stage 23 of the 1987 Tour de France, Liggett stated "[It has been a] very disappointing Tour for Robert. He has lost a lot of popularity, too, one has to say. He won't speak to journalists and the team itself [Panasonic] is also becoming discontented with Robert this year." York subsequently left Panasonic at the end of the 1987 season, to join Fagor.