Cogal you are doing really well. Look back over your thread and you will see how far you have come in so short a time.
Alot of these boundary issues are to do with you H, but have you thought about some things you could be doing yourself.
One I might suggest is trying to understand the reasons behind your H actions, not automatically assuming they are something to do with you. I don't know if I have put that very well.
Also I expect there are some things you might like to do in your own life and you should think about what these might be.