Darvey hit a major speed bump on their way to any type of romance on Wednesday's Suits. And no, we're not talking about Mike's case officially going to trial.

Donna (Sarah Rafferty) and Harvey (Gabriel Macht) were nearly dunzo after prosecutor Gibbs (Leslie Hope), in hopes of getting someone to turn on Mike (Patrick J. Adams), charged Donna's dad James (Derek McGrath) with bank fraud on a dirty real estate deal in which Harvey refused to invest seven years ago. Harvey saved James at the last minute, but will this be a turning point in his and Donna's relationship — for better or worse?

Suits boss on Mike's rat: It was the "perfect choice"

"I personally struggled with that ... what's she gonna pick? There really isn't an answer," Rafferty tells TVGuide.com in the video above. "I mean, does [the sexual tension] ever go away? What motivates people?"

Click play to see what else Rafferty says. Suits airs Wednesdays at 10/9c on USA.