Taeyeon is my bias so I'm not like insulting her in anyway, but after reading this little comment I kind of agree.. In fact this was how I see the whole situation all along. 

Who was the one that have up on the friendship?

The post stated: "People act like it's Tiffany's fault that TaengSic no longer exists, but it's actually Taeyeon's fault; every time Jessica tries to get close to Taeyeon, Taeyeon diverts her attention towards others (Ignoring her)."

All along I always kinda felt that Jerk Taeyeon was the one who abandon this TaengSic friendship they had (maybe that's why this author over here is always making Taeyeon the one that suffers in the fics).

So to to tell the truth, it wasn't TaeNy or Fany that broke TaengSic up, it was Taeyeon.  

We never know about how close these two are behind the camera or the main reason why they became distant towards each other, but there's something I can be sure of by seeing them in photos etc. Taeyeon seems to be the one rejecting Jessica, it is clear that Jessica often fidgets in front of Taeyeon (but she always gets ignored)

Being a TaengSic shipper is really difficult, despite the fact that the amount of moments a year is lesser than the amount of TaeNy moments in a day!

Nevertheless, let's continue to hail TaengSic~ ^_^ 309418 <3