Valentine's Day is fast approaching, but the gang is still preoccupied with more pressing matters in the next episode of "The Big Bang Theory" season 9.

Based on the synopsis for the episode titled "The Valentino Submergence," Sheldon (Jim Parsons) and Amy (Mayim Bialik) will host a live episode of the "Fun with Flags" podcast. But things will not turn out the way they originally planned because the episode will suddenly become Amy's advice show. Will this cause another conflict between the two?

Meanwhile, the episode will also show the struggle between newlyweds Leonard (Johnny Galecki) and Penny (Kaley Cuoco) after they both realize that they are starting to get older. The two will spend some time reminiscing the times when they were younger.

The episode synopsis also reveals that Howard (Simon Helberg) and Bernadette (Melissa Rauch) will get a surprise while preparing to spend a relaxing time in a hot tub. Based on the sneak peek that was released for the episode, the couple will discover something cute and fluffy.

Meanwhile, Raj (Kunal Nayyar) will be facing a difficult dilemma in the upcoming episode. Raj and Emily (Laura Spencer) will encounter a rough patch in their relationship. But instead of focusing on fixing the problem, Raj will find himself thinking about Claire (Alessandra Torresani), the cute girl he met at the bookstore. Will Raj finally give in to his attraction to the new girl, or will his love for Emily prevail?

Raj will be in the middle of a difficult love problem in the upcoming episode, according to TVLine. 

"I think he knows in his heart that this might not be the right person for him, but, for a sensitive and insecure guy like him, the thought of choosing to break up with someone and then be alone is difficult," series executive producer Steve Molaro explained. "That's something he will be wrestling with further in Season 9."

"The Big Bang Theory" season 9, episode 15 airs Thursday, Feb. 11, on CBS.