Starving: Science Fiction

She was starving. That was her excuse. That was what she told everyone, when they wondered how she could possibly have done it. Sometimes she even found herself believing it, she'd said it so often, with such conviction, from her trial onward. It was a lie, of course. She'd been very, very hungry, yes--but not starving. She would have survived long enough to be rescued even if she hadn't eaten S-tha. She'd even expected that rescue would arrive in time. Really, she'd just been curious how S-tha would taste. She hadn't liked S-tha particularly much, but she never would have hurt it. It had died in the accident that trapped her, though, and the first thought that had flickered through her mind when she'd seen the big, feathery aliens was how they'd taste.

Inspiration: Somebody saying they were starving.
Story Potential: High.
Notes: And...some sort of alien rapport/abilities/symbiosis is gained from the eating, but there's all kinds of complications, too. The center lie is what holds it all together. So--unravel it and what kind of story is there?