Instead, she’s hooking up with her nephew, which could make for a very awkward conversation when Jon inevitably finds out that he’s a Targaryen.
In fact, given that Jon is technically the rightful heir to the Targaryen dynasty, she may want to marry him to increase the chances of winning the Iron Throne.
She grew up on stories of her family, and she seems to hold at least Rhaegar in high regard.
Then again, Dany might be cool with the incest part.