Why do people persist in a dissatisfying relationship, unwilling either to work toward solutions or end it and move on? It's because they know changing will lead to the unknown, and most people believe that the unknown will be much more painful than what they're already experiencing.
There is much pain that is quite noiseless; and vibrations that make human agonies are often a mere whisper in the roar of hurrying existence. There are glances of hatred that stab and raise no cry of murder; robberies that leave man or woman for ever beggared of peace and joy, yet kept secret by the sufferer --committed to no sound except that of low moans in the night, seen in no writing except that made on the face by the slow months of suppressed anguish and early morning tears. Many an inherited sorrow that has marred a life has been breathed into no human ear.
Strictly speaking, there is but one real evil: I mean acute pain. All other complaints are so considerably diminished by time that it is plain the grief is owing to our passion, since the sensation of it vanishes when that is over.
Pain, scorned by yonder gout-ridden wretch, endured by yonder dyspeptic in the midst of his dainties, borne bravely by the girl in travail. Slight thou art, if I can bear thee, short thou art if I cannot bear thee!