For today's entry in the February Ships and Feels "Who would you give Valentine chocolates to' I have to go with the adorable (but crazy) Kurome from Akame Ga Kill.
She is Akame's younger sister, and still loyal to the Empire. She is the subject of terrible battle-modifying experimentation and is therefore reliant upon the drugs that they administered to her to increase her strength.
Her drugs actually come in the form of the little candies that she is always eating. So she has a sweet tooth but also is suffering from addiction to the battle meds.
Hopefully I could give her some lovely chocolates and ween her off of those harmful drugs.