Anonymous wrote:What makes you think that your “honest” opinion is going to make them ditch their partner vs distance themselves from you?
This. My mom gave me her "honest opinion" and then threatened never to speak to me again if I married my dh. I said ok.
Happily married for 25+ years. We are very compatible, he just wouldn't have been compatible for my mom. My relationship with my mom never recovered.
You can point out things OP, but keep in mind it's your adult child's choice to make, not yours.