Ha ha ... no one said such thoughts had to be applied to a personal relationship!
Of course I open doors for everyone so that's not really male or female specific.
Where I work there are alot of "professional" women who won't so much as grumble a thanks when you hold the door open for them. They're possibly the rudist people I've ever met. Men hold doors and say thanks when doors are held for them. Women (in my experience) go out of their way not to hold doors and don't give so much as a side glance when doors are held for them.
Oh well ... can't worry about that. Still don't have an OF.