Curve: (verb) to reject a potential suitor’s romantic advances

First Known Use: No Clue.

Spotted on Twitter (10-19-16) when tweets described Singer Jazmine Sullivan’s actions towards Atlanta gospel singer Thomas TC Clay-2 who recently passed away (10-15-16). Sullivan confessed in Facebook tribute –1  how she kept her distance from “TC,” whom she thought had a crush on her.

Twitter’s response echoed this one:

Origin/Etymology question:  Is this slang word “Curving”  based on a dog/rabbit’s move when they run away? Or is it a baseball reference such as Curveball?

Let me know.