Likewise they just tend to fade away from your life - after all, that avoids the awkwardness of going through a messy breakup talk or scene. It's too hard for them. Best to simply fade away, rather than show any signs of what might once have been called consideration and commitment.
Now substitute "intimacy" for "awkward".
This is the empty soul of modern relations and relationships.
I look at myself. I've had situations where a woman refuses to accept the "it's over" talk and causes a huge scene. Now I don't bother, I simply fade away.
It is sad that my own soul has been damaged in this manner and now follows this example.