I'm guessing you don't have any significant attachment injuries from childhood. If you understood what that does to a person you wouldn't make such an insensitive comment.

Working on understanding and healing attachment in therapy can be a crucial first step in "doing something different in one's own life," particularly when it comes to relationship with others.

Of course, not everyone needs to work on such things. And that's great. But to say that those of us who do need to work on it are somehow weak and moaning, unwilling to make change, is outrageous and rather cruel in my opinion.