You had asked Leo to teach you some Morse Code. He agreed.

He actually sat you down to teach you three weeks after.

You were sitting on a bench, he was scribbling dots and lines in a notepad and calling it the "Morse Code ABC's" and you were leaning over his shoulder to watch curiously his scribblings. After awhile he turned and said: "Now, I'll demonstrate" He grinned, happy to have someone interested in MC, before knocking a few times on the wooden bench. You didn't know what he said. But he did

I like you, but you probably don't like me back