They are agreeing with you and saying that there is 'no doubt' to what you are saying.
It means you can choose to believe what they are saying or you can choose to doubt what they are saying.
The old adage says that living well is the best revenge.
he appreciates what you are saying
He's either indicating that he wants to be with someone, anyone, rather than be alone, or he's subtling saying he wants you.
It means they understand or that what you are saying is obvious.
When a girl says that to you she is saying it from the heart and you are more important then the world she lives in which if you think about it, its a lot. But most importantly she is just saying that she loves you all so much!
It probably says more about the person saying it than about you. A happy settled person would not think or say such a thing!
It is a Yiddish saying that means, "as the peasant says."
they are saying you look really good
they are really saying so what
He could just be nervous about saying it. The best thing to do would be to ask him about the situation. Hope this helped..(: