Kotoko is finally a full-fledged nurse, but worries that due to her lack of experience, she'll be a burden on Naoki.
You should break up with him
while you can.
Du solltest mit ihm Schluss machen,
bevor es zu spät ist.
Deberías terminar con él mientras puedas.
Deberías terminar con él mientras puedas.
Você devia terminar com ele
 enquanto ainda tem chance.