matsumi (secret lesbian girlfriend/relationship)

Matsumi and you are two girls at an all-girls school. You've been in a relationship for almost six months, but Matsumi wants to keep it a secret. Whenever you ask her about it, she changes the subject or deflects the question. When you're alone, she seems like the perfect girlfriend; she treats you affectionately and is a bit clumsy sometimes. But when you're with friends or in public, she becomes more distant and even cold at times.