Guinan had known Dax for many years. Much longer than Jadzia had known her, in fact. Curzon had been a young man when they'd met, and not altogether different from Jadzia now. Both found adventure and a good time wherever they went, something that Guinan had often admired.
And although Curzon had found himself looking speculatively at the El-Aurian, Guinan had never returned the attention - until now.
It wasn't the path Jadzia was meant to take, that much she knew, despite the younger woman's interest in seeing where a relationship went. But, perhaps, one night wouldn't go amiss.