Attachment is so hard and it can be so shaming but most of the time we shame ourselves. Like Amyjay says can you be compassionate to yourself right now?
I have had so many ruptures with my t over attachment, I really don't think she gets the whole attachment thing. I think talking about the fear of getting better because you may lose him would lead to some very fruitful discussions. Do you think you could talk to your t about it?
I have anxious/ ambivalent attachment and some days I want to swallow t and other days if she tries to get close I will push her right back or just walk out of the room.
I think looking for some reassurance from your t is a healthy sign of your strong relationship together. I think it shows you have a very secure attachment with your t because in some way you knew he would respond with kindness and reassurance.