WARNING: This article may contain some spoilers for The Flash season 6 episode 12. Read at your own risk.

The Flash season 6 episode 12 is arriving on The CW next week, with the title "A Girl Named Sue." The episode sees Sue Dearbon finally arriving in the series, as her appearance has been already teased previously. The character has a huge role in Ralph Dibny's life, who happened to be his wife in the future.

In The Flash season 6 episode 12, Ralph (Hartley Sawyer) gets a lead on Sue Dearbon's (Natalie Dreyfuss) whereabouts after months of searching. He finally comes face to face with his client, but she refused to go back home. Instead, Sue takes Ralph on a daring adventure.

Sue comes from a wealthy family in Central City, but she's not an innocent wallflower. She speaks her mind and she has her own ways to get what she wants. Sue's arrival made fans even more excited, especially since she eventually becomes Mrs. Ralph Dibny.

It's exciting to see how the story of Ralph and Sue will unfold. Right now, it remains to be seen whether the two will end up getting married, just like the couple in the comics. Yet, their potential romance might be a slow burn, which only makes sense to make their relationship more interesting.

Ralph was introduced in the series back in season 4. He joined the team Flash, but it took him a while before becoming Elongated Man. He's an irresponsible goofball during his early appearances, but he became an important member later on.

Sue is one of the interesting storylines in Ralph's arc; she is someone whom he married in the comics. Fans have been waiting for her to appear, and they're now excited as she's finally arriving in the upcoming episode. In November, it was confirmed Natalie Dreyfuss will portray Sue Dearbon.

Meanwhile, aside from Sue and Ralph's meeting in The Flash season 6 episode 12, the episode will also see Iris (Candice Patton) facing a new challenge. Barry (Grant Gustin), on the other hand, will consider a possible dangerous request from a trusted source.

In addition, Eva McCulloch is also one of the mysterious characters this season. Some speculated she might be the new version of the Mirror Master, and she's the one who took Iris inside the mirror in the midseason premiere. But then, it remains to be seen what would be Eva's role as the series goes on.

The Flash season 6 episode 12 airs on Tuesday, Feb. 18, on The CW.