Good for you! Sounds like you have your head on straight. I hope he thanks you for that later.
Bluntness is fine, as a dose of reality is helpful sometimes. The truck is to keep it respectful. Hard to do on this topic for me. Mono had yet another long talk about it after. Always s journey. If he wants any further reassurance that the best course is as you laid it out, there is certainly lots to read on here. Yours is not an uncommon thread.