The couple went public with their relationship six months ago, and royal fans believe they will soon follow in the footsteps of Beatrice's younger sister Princess Eugenie and her cousin Prince Harry, who both married their respective spouses at St George's Chapel in Windsor.
A source told The Sun that the pair are said to now be living together, with Edo thought to have moved into Bea's apartment in St James's Palace earlier this year.
But the smitten pair are unable to make things official, with the announcement of their own big day stalled.
According to a royal expert, the delay is being caused by the Queen Elizabeth II's hectic schedule.
Beatrice’s wedding date will depend on when her grandmother the Queen is free to attend, royal commentator and editor in chief of Majesty magazine, Ingrid Seward told Hello!
“They have to find a gap in her diary before they name the day," she explained to the publication.
This story first appeared on New Idea.