"My heart’s been borrowed and yours has been blue / All’s well that ends well to end up with you," the lyrics go.
One fan posted about the lyrics on Tumblr and suggested a possible engagement and Taylor, 29, "liked" the post.
"Wait……… my hearts been borrowed and yours has been blue…… something borrowed and something blue …… ma’am," the post read.
"Taylor Swift just casually confirmed she’s engaged to Joe Alwyn through a Tumblr," one fan commented.
"Taylor really believes Joe is the one for her. She wants to get engaged to him. She just doesn’t feel as though she has to impress anyone at this point," a source previously told Us Weekly.
Do you think Taylor is engaged to Joe? Sound off in the comments below!