The song "More Than This Old Heart Can Take" by Merle Haggard is about a man who is struggling to come to terms with his love for a woman who is no longer faithful to him. He sees her walking into another man's arms and it is causing him immense pain. The ties that once bound them have broken loose and he feels like he cannot handle it anymore. The man reflects on a time when he was always on the woman's mind, but now he feels like he is nothing more than a fool. While he thought he was strong enough to live with his mistake, he realizes that loving her is more than his old heart can take. The chorus of the song emphasizes this sentiment, as the man explains that he doesn't know how he's managing to keep his mind from going crazy. When the woman laughs at him or dances too closely with someone else, he feels like he's going to break. In the end, he admits that loving her is simply more than his old heart can take.
