f(x) may be on hiatus, but it hasn't stopped the group from sparking dating rumors with other K-pop idols.

Last month, f(x) members Victoria, Luna, and Amber made appearances on KBS 2TV's "A Song for You." During their segment, MC Kangin suggested that the ladies send an "I love you" text to their friends. What was TVXQ's Changmin's reaction to Victoria when she sent him that text?

"Huh? You're busy with promotions lately, right?"

Despite being a seemingly innocent response, this brief interaction between Changmin and Victoria is enough to spark dating rumors amongst fans.

"The most reasonable couple in SM," commented bang-dae on allkpop. "I can't understand Baekhyun and Taeyeon and also Tiffany and Nickhun at all. Victoria and Changmin? Get married already."

"Changmin and Victoria are totally dating," tweeted Aaliyah on Twitter on August 4.

Reportedly, Victoria also sent the text to Super Junior's Kyuhyun and Ryeowook, as well as Super Junior-M's Zhou Mi, but Changmin was the only one who responded.

During f(x)'s appearance on "A Song for You," member Sulli was allegedly edited out of the episode, coinciding with the announcement that she would be taking a hiatus from promotional activities.

One possible reason for Sulli's absence could be the recent dating rumors surrounding her and hip-hop artist Choiza of the Dynamic Duo, which have persisted since last September when the pair was allegedly photographed on a date together.

"She looked very depressed," commented Tith Samsomnear on a brief cut of Sulli in this episode. "That breaks my heart. We're always here for you. Please regain strength and be back soon. Miss you girls so much."

Check out a quick video of Sulli allegedly on "A Song for You."