The One With The Candy Hearts; Season 1 — Episode 14

In this episode, we see Ross run into his ex-wife, Carol, and her new significant other, Susan — which is pretty awkward for Ross, considering he’s on a date with another woman, too. Meanwhile, Rachel, Phoebe and Monica burn mementos from old boyfriends, and Joey hilariously sets Chandler up on a date with a beloved “Friends” guest star: Janice.

The One With Unagi; Season 6 — Episode 17

While Ross’ newest obsession, Unagi (a state of total awareness Ross has pledged to be in), annoys the group, Chandler and Monica decide to give each other homemade Valentine’s Day gifts. As you can probably guess, Chandler panics. In the meantime, Joey tries to earn money through medical research, and Rachel and Phoebe take a self-defense class. How romantic!

The One With The Birthing Video; Season 8 — Episode 15

What better way to celebrate Valentine’s Day than when watching a real birth on video? In this Valentine’s Day episode, Chandler sits down with the girls to watch a graphic video of the miracle of birth, which of course, he hates. Again, very romantic!