((STWE)), i'd go back and discuss the boundary issue with your T. then you will have a better understanding of what she meant. i think it was very wise of you to not allow B to tell you about his issue. what fast thinking! many times people will ask if they can tell me something but they don't want it repeated, period. i've learned to say well i don't know if i can promise that cause if you told me something that might be harmful about yourself, i'd feel the responsiblity of sharing it with someone to protect you. do u see where i'm going with this?..or it could be something incredibly unkind and not true about someone else...no one wants to be put in the middle about something like this. it creates a 'triangle" in a relationship...my t has told me that is not a healthy approach to get involved in. meaning one person telling another person something about another person rather than keeping it between the first 2 persons. whew! i hope you can follow that thought!
also it sounds like at the present B may not be very stable..i could be wrong..but i feel you made a good decision at the time. ask your T about her comments. that'll give you better definition of the remark. keep us posted. i hope this helps, too.