I'm sure you'll all be shocked by this analysis, but I think my marriage counselor encourages attachment. Sharing lots of personal stories, reassuring me, being accessible by outside contact. Plus he's apparently psychodynamically oriented, which tends to be of the philosophy that the therapeutic relationship is very important (as I understand it and as current T, who is not psychodynamic, explained it to me). I don't know that he realizes quite how much what he does encourages attachment though...

Current T doesn't seem to really encourage attachment, though he's told me, in response to my asking, if I get attached to him (he knows my history with MC) that we'd work through it, that he wouldn't drop me or anything. He limits outside contact and doesn't divulge that much about himself.