Sometimes we hold back our tears, feeling it is a sign of weakness to cry, a sign of being out of control, a sign that we are not able to handle life's circumstances. For some not crying could be a trained behaviour from environmental upbringing, and for these reasons amongst others quite often we do not embrace the powerful emotion of crying.
As the years pass them by, some people get so good at holding back their tears that they eventually adopt the word 'strength' to describe their emotional disconnect.
The fact that they have graduated from being connected to their tear trigger emotion, to a point where they robotically mask it, does not worry them. Even though their lack of emotional reaction is a large part of their failed relationships, which they are aware of in most situations, they continue to refer to their unwillingness to cry as strength.
Moreover, when one accomplishes the disconnection they do not realize how deeply they are affecting their other emotions in such a negative way. Emotional balance is imperative for a good lifestyle and lifecycle.
If you do not cry, you do not find emotions comfortable, yet your relationships are rough and on the edge of collapse, then pergaps all you need to fix things is a good cry.
By expressing a little emotion you will get a little more back.