How to successfully speak to FA ex about attachment styles?

Thanks for your responses everyone. I’ll definitely be focussing on my progress. I’ve been reflecting on my own attachment type and I think I might be a heavily AP leaning FA myself. I’ll have for a conversation with my ex-FA if we ever reach that point of trust in our relationship ever again. We have some mutual friends and other shared points in common so this may happen/ or not.
I am aware of how incompatible we are so I’m not actively trying to get back with him.

Interesting what you say Krolle. I actually tested having this conversation with a guy I went on one date with and hooked up with 4 years ago. We have a long history but now we’re just friends. He’s definitely an avoidant (I think DA) and has never had anything close to a relationship in the 5 years I’ve known him and goes from one night stands after another. We talked about therapy, childhood issues and relationship patterns. During the conversation, he said how he values his independence the most, how he’s been with girls who had boyfriends (confirming that relationships don’t last), how his parent’s divorce affected his trust for relationships and how he fears attachment as a result. I spoke to him about all this and it was very interesting to hear these values from the horse’s mouth let’s say. He’s a very attractive man (as many avoidants are) but I have zero intentions of getting together with him. I suppose this shows that we can have these conversations but as you say, with zero intentions to get back into a relationship.