My wife is reserved as well when it comes to communication. She does not like conflict and goes out of her way to avoid discussing issues. This is a major part of why we are in this situation re our marriage.

I will take the email and phone call approach as a positive. She maybe using this as a way to gauge my current take on our situation. I try to maintain a consistent level of response to her. Always positive, supportive, willing to help and being upbeat re phone calls. Same thing for the email contacts.

Over time she may come around re the face to face interactions.