noun. A serious disorder, sometimes brought on by ex-sweetie-bags who are secretly evil, stabby, CIA-infiltrating clones.
"Sydney: Let's talk about you. A beautiful painter lives in your building and you haven't asked her out yet. Why?
Will: Because (Will's cover is) recovering from post-traumatic dating syndrome after his last girlfriend dumped him by ramming a bayonet into his lungs."
("Remnants," Dec. 7, 2003, Alias)
Made-up citation: "With their hump-happy, omnisexual ways, the bonobo suffers from less post-traumatic dating syndrome than any other primate."