I, too, have problems expressing what I want face to face, even if he tells me to, i.e. when he asks if I want to be fucked in the ass. Sometimes, I still hesitate to say it in which case I'll have to repeat it several times. *groans* In terms of having an actual discussion about stuff, I prefer to communicate via email. It gives me time to think about what I want to say without having him sitting there looking at me.