お勉强しといてよ

The speaker seems overwhelmed by feelings they cannot easily explain. At first, they hide behind jokes, toughness, or the idea that things cannot be helped. They want to move forward and perhaps leap into something new, but sadness and uncertainty hold them back. As the song develops, the feelings become more directly connected to another person: the speaker hopes that person cares enough to be troubled too. The mood mixes longing, frustration, and a self-conscious kind of humor.

A strong image is washing old memories, only to find they still will not dry. This suggests that time or effort has not made the past easier to leave behind. The “emotional reference book” turns feelings into something collected and studied, as if the speaker is trying to understand emotions by organizing them. “Study it” and “solve it” can sound like a request for the other person to learn how the speaker feels, though the speaker may not know the answer themselves.

The relationship remains open to interpretation: it may be a painful attachment, a hesitant confession, or a wish for mutual understanding. The speaker’s hope that their feelings will trouble the other person sounds partly playful and partly sincere. They seem to want closeness, but also recognize that caring can hurt both people. By the end, they are still unsure whether choosing instability and change is good for either of them.