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Is Lena Dunham secretly engaged to boyfriend Jack Antonoff? Maybe secretly married, even?

The engagement speculation has been running rampant for a while but quickly reached a fever pitch after she referred to Jack's sister, Rachel Antonoff, as her "sister-in-law" during the Sundance Film Festival.

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Girls, they say the darndest things.

This could be chalked up to a simple slip of the tongue, but then again, earlier this month Lena was spotted wearing what appeared to be an engagement ring.

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A New York Post reporter allegedly tried to get Lena to clarify her comments made during a Planned Parenthood party, but the "Girls" actress "kindly refused."

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Lena has been dating the fun. guitarist and Bleachers singer since 2012. They once stated that they wouldn't get married until same-sex marriage was legal throughout the United States.