There are many aspects of Bill Gates and Melinda Gates’ marriage that we will likely never understand as they separate after 27 years together, a development announced earlier this week by the ex-couple on Twitter. But one particularly unusual detail about the tech billionaire’s union gained interest today after a 1997 Time profile resurfaced in which his relationship with longtime ex-girlfriend Ann Winblad was discussed in some depth, including the extent to which they remained involved after his marriage to Melinda. Per the article, Gates and Winblad continued to spend a long weekend on the beach together once a year even after he married Melinda in 1994 — and it seems to have been an agreed-upon dynamic with Melinda.

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