Tell him you two need to have an honest discussion.
The Sun
The honest discussion of our questions that day had the effect of deeply affirming my faith.
Christianity Today
It's hard to have an honest discussion about this topic with such prevailing extremes.
Christianity Today
Have an honest discussion with him about where you go from here.
The Sun
I always suggest the direct approach instead - ask them for an honest discussion and say you are prepared for the truth.
The Sun