When I share in Al-Anon, I keep the content to the Al-Anon programme: the past, other people, their behaviour, my feelings, etc., are employed only as part of the worked example.
Sharing in Al-Anon is different than chatting to friends or talking to a professional. The aim isn't 'raw, honest self-expression' but purposeful discussion of God's Way channelled through the literature and the fellowship of Al-Anon.
In other words, it's not about them; it's not about me; it's about the programme.