Have you tried talking about the fading connection in session? I tend to think that if session was giving you what you needed, the connection might not fade so quickly. Or does this highlight something you are missing in real life-- does connection fade for you in other relationships? I'm not talking about adapting to a partner leaving town for a few days or your closest friend being unavailable.

I'm not saying that clients don't benefit from email exchanges, but I think having a strong connection is a therapy topic that would benefit more from discussion than email. Maybe even bringing the issue into the light for a weekly check-in, as in "this is how I did with my sense of connection this past week", reporting on it, journaling about it, or any other "tool" including email or homework, would be helpful. I guess I'm just saying treat it as something to work on rather than something that needs a quick fix.