Talking to an adult child is always a tricky thing. You have to tell them what they need to hear, but not always what they want to hear. And you can't ground them.
I remember one particular time when my mother said exactly the right thing. I told her I was getting married to someone she had never met. She said, "I'm sure you made a good choice." Wow. Maybe she spent days practicing that, but it sure came out at the right time.
My daughter, also a blogger, did a post on things not to say to a new mother. Very funny, but a little blue, but totally on point. Especially the very last section what people should say,but don't. And guess who said the right thing?
Me,that's who. I rock!