The heroine is a university counselor, a textbook Gemini. At first she pursues him with all she's got, then backs off fast once she sees that his feelings are real.
The hero is a university lecturer with a sharp tongue and sound logic, a master at playing hard to get. He's calculating, wants their relationship made official, and knows how to love.
"I love you. I love only you.
You were the one who lit the fire, and now you say you want to put it out?