A lover.

You are a closet romantic, wanting nothing more than someone to hold and love with all your heart. Someone on an equal footing who would give you their love and devotion in return. Someone not impressed by wealth or status or joining you with an eye to their own advancement.
Admittedly, a prisoner isn’t exactly ideal for this position. It may take a long time before you can trust any feelings other than hate and fear that he expresses towards you.
Thinking optimistically however; after time and effort, you may be able to seduce him, and win his trust and loyalty. Then, when you are completely sure that you hold his heart, you could free him and have him stand by you as an almost equal.
A far off dream indeed. But one you have time and energy to work on.
Resolved upon your long-term goal, you realise that the water is growing cold and the food is all gone. Thankfully the day is not yet over and there is no better time than the present to get things started with Doe.