Barry Allen is getting a taste of the breakup blues on The Flash.



After Patty Spivot (Shantel VanSanten) made the lone decision to follow her dream of studying to become a CSI, it meant she had to leave Central City -- and Barry (Grant Gustin) -- behind. On Tuesday’s episode, titled “The Reverse-Flash Returns,” the tension between the former love birds is inescapable.

RELATED: 'The Flash' Star Candice Patton Talks Iris' New Love Interest

Before leaving town for Midway City University, Patty seeks Barry’s help in trying to crack a new case, only the Fastest Man Alive does anything and everything to avoid any meaningful eye contact with his ex. Things start off pleasant between the … colleagues … before Patty notices Barry’s not his usual self, confronting him about the elephant in the room.

“I know you’re upset but I was hoping it wouldn’t be like this between us,” the Central City detective tells Barry in ETonline's exclusive sneak peek.

“What did you think it was going to be like?” Barry replies, clearly hurt and not giving her what she wants. “You’re moving. I don’t know. It just doesn’t feel like there’s much to talk about now. Right?”

“I guess not,” says a dejected Patty, desperate to talk things out before she leaves town.

RELATED: 'The Flash' Star Grant Gustin Defends the New Barry Allen, Ezra Miller, on Twitter

Ice cold, Barry. Ice. Cold. Press play on the video above to watch it all play out!

When things were going well between Barry and Patty in the romance department, Gustin said their relationship was “effortless.”

“They are interested in a lot of the same stuff, and it’s just an escape for Barry right now because everything else just is heavy in his life other than his relationship with Patty,” the star said. “It’s been fun for consecutive episodes and I think everyone will enjoy seeing Barry be happy with at least one aspect of his life.”



The Flash airs Tuesdays at 8 p.m. ET/PT on The CW.