They had a bit of a chance encounter on a day where Blueblood was dealing with something that was very difficult and was so caught up in his emotions he didn’t even care that he was in the garden getting grass stans on his coat and Ditzy, with her natural impulse to cheer ponies up, didn’t even notice or care that she was flying into the palace gardens when she saw someone sat in the rain.

At first he was definitely going to call the castle guards to come apprehend this strange filly with the odd eyes who was intruding when this was the last moment he’d want to entertain any desperate debutantes, however she surprised him by not fawning or anything, not even caring about his status, just putting one of her fluffy wings up and asking if he needed somepony to lend an ear.

“Don’t let my eyes fool you, my ears work just fine!”

She was incredibly disarming and while he didn’t reveal everything about why he was upset, he found himself talking about his feelings to her. And she made such cheerful remarks, and was very comforting. In the end, he felt better and she came to check on him the next day, even sharing a blueberry muffin with him. He remarked that he’d never seen her around before, and that he wouldn’t mind terribly seeing her more often.

The rest, as they say, is history.