Taylor Swift may be ready to ditch her old persona as she embraces her new Reputation, but not everyone has forgotten about the singer鈥檚 past. On Tuesday鈥檚 episode of Watch What Happens Live, host Andy Cohen asked guest Maggie Gyllenhaal 鈥 whose brother, Jake, dated Swift in late 2010 鈥 about a reference in one of the 鈥淏ad Blood鈥 performer鈥檚 older songs. That is, whatever happened to the scarf mentioned in 鈥淎ll Too Well鈥?

In case you need a refresher, Swift opened the tune (from her 2012 album, Red) with the lyrics: 鈥淚 walked through the door with you, the air was cold / But something 鈥檅out it felt like home somehow / And I left my scarf there at your sister鈥檚 house / And you still got it in your drawer, even now.鈥 The track is widely believed to be about Jake, which would make Maggie the aforementioned sister.

It turns out, though, that the actress doesn鈥檛 know much more than we do. 鈥淚 never understood why everybody asked me about this scarf,鈥 she said while promoting her new HBO show, Deuce, on WWHL. 鈥淲hat is this?鈥

After the host gave her a little backstory and tried to explain the specific lyric, Gyllenhaal responded with a bit of confusion, saying, 鈥淚 am in the dark about the scarf.鈥 She added, 鈥淚t鈥檚 totally possible. I don鈥檛 know. I have been asked this before and I鈥檓 like, 鈥榃hat are you talking about?'鈥

Of course, it鈥檚 worth noting that fourth line 鈥 鈥淎nd you still got it in your drawer, even now.鈥 If Swift did leave anything behind, it鈥檚 possible that her ex grabbed it (and kept it?) without his sister ever knowing.

Alas, we may never know for sure. That is, unless Jake wants to fill us in on his side of the scarf story.

What鈥檚 your favorite Taylor Swift song from Red? Let us know @BritandCo!

(Photo via Andrew Toth/Getty Images for Self-Portrait)