Have you ever felt that you've chosen the wrong partner?

Okay, I think about strange things sometimes—> hearing about when people say that they’ve chosen the wrong wife, or husband, makes me sad.

Well, maybe you have chose the wrong one, what did you do?..

Have thoughts such as these ever crossed your mind, or even continuously lingered there? Where you wish you had chosen someone better, or that you have chosen the wrong person? When did that feeling come to you? Had the person changed, or did you just realize they weren’t that great?... Did that feeling ever go away?...