Actually i have the opposote problem! (other sites in the past) Within just a few messages they want me to call them!!!!
I find that completly unnerving, and they appear to have little patience or respect for that. I can go with emails and pictures for months, no problem, and I would be comfortable with that.
As far as I am concerned we need time to build up a sound relationship and usually the cracks appear sooner rather than later.
Slow down