If you truly care about your T, you're gonna have to respect her boundaries in the end. Even though I too would want to hear those words, I know it wouldn't actually help me, and I know that it would be disrespectful to try to force her to do it.

Something she might do though: ask her for a tangible object; like a small stuff animal. If she does, the gesture itself is a reminder that she cares and it's something you physically can touch to comfort yourself when you miss her. I have asked for stuffed animals from everyone from my fiance, to therapists, to school counselors, etc. Anyone important in my life, I ask. I even this week asked my own T for one in an e-mail...scared to death of tomorrow's session!