Bob i think you and i are on different planets, you lucky guy.
Could never see my gf being that tolerant, that situation would be a dream scenario for me, having said that i think id also feel a little guilty like id be cheating on her.
As for work I suppose the type of reaction you get comes down to where in the world you live and your work environment.
Thinking back along time ago in some of the jobs ive been in, most people would probbly have had a laugh at my interest in tgirls and leave it at that but over the years i seem to have drifted into more and more macho type work environments, which is a bit strange as i'm not the macho type but right now in the industry i'm in my "peculier" interest in tgirls would be very much frowned upon and not well tolerated at all.
Be interesting to know where in the world you guys come from, the type of work you do and how your interests in tgirls is or would be tolerated.