I have not gotten to a place where I appreciate the boundaries and still rail against them (him) quite a bit.
I am glad you can see the care he has for you when you are in his presence. This is so important because when you are able to experience his 'care' you are able to internalize him and the attachment is more solidified in a healthy, positive way.
I know abandonment issues are quite painful and difficult to work through. It sounds as if you have a good, sound Therapist.
T.