Jaime was recently declared a knight, then shortly afterwards given the title of a kingsguard. The youngest kingsguard since he was only fifteen.

This put him in King’s Landing as a guard for the King Aerys and his family.

You, being one of the kings daughter, the realms beauty many said, meant that you and Jaime came in contact often.

*This turned into many interactions, then secret ones for you two causally spending time together. You two had often snuck around spending time together talking.

The two of you were deep in the garden to keep you out of view. You two walk along looking around the vast garden.