As some of you may know know I'm a trainee counsellor and consequently having weekly therapy as a condition of my course. For the record, I'm 28 months post-bd.
I wanted to share my thoughts about discussing MLC-type behaviours in therapy/counselling as I know many struggle to find a counsellor who "gets" MLC. Tbh, I don't think it's necessary to find a counsellor who gets MLC. I think it's more useful to look at the behaviours that categorise MLC - avoidance, refusal of responsibility, personality change plus identity issues, parental attachment issues, hormonal issues, passive-aggressive behaviours, codependency behaviours, addiction, etc.
I also think by looking at the specific behaviours and how they impact on you, you will feel more understood by your counsellor. Counsellors will understand these behaviours, they see them all the time. Whether we like it or not, the term MLC has way too much baggage. It is not included in MLC training or even mentioned. So instead of beating your head against a brick wall trying to convince your therapist that MLC exists, why not explore the specific behaviours and issues as they manifest in your spouse/partner. I find I don't even use the term anymore. For example, today in therapy, I explored how my husband manifests as a child (teenager) and refuses responsibility and how I can best respond to him as an adult and not parent. (Transactional Analysis is a great tool for understanding parent/adult/child behaviours and responses) My counsellor really understood the issues, she has seen them many many times. But not once did I use the term MLC as I just don't felts helpful.