How to tell H I think he need therapy?

[Smeghead]

He has major issues going back to his childhood that have affected him ever since.

Its gone too far now, and I think that proper therapy would help him confront the issues and deal with them, but how do you tell someone that without it sounding like you are questioning their mental health, which is how he will take it.

Difficult. One thing coming out of my counselling is the issues that STBXH has from his childhood. He needs counselling but it is no longer my place to suggest it.

I think you need to find a quiet time and start the conversation in a way that he does not feel attacked

Pick your moment in a non threatening supportive way. However you can't force someone into counselling needs to come from them.