Jordin Sparks understands that when a real-life couple makes a "Marry Me" music video, there's going to be some pressure to actually get married—or at least engaged. Ex-boyfriend Jason DeRulo was seemingly overwhelmed by the wedding countdown clock, but Jordin didn't empathize much on that front. "Listen, we set ourselves up for that," she said on The Wendy Williams Show Wednesday. "We set ourselves up for that pressure." And while the former American Idol winner, 24, called her ex "a great guy," she didn't exactly jump to his defense when asked about rumors of infidelity, telling Wendy, "I actually don't wanna comment on that." When Jordin...