A Clothed Biped in Red and Blue

What happens if you combine a yandere, a symbiote, and a humanoid body together? You get a symbiote woman who has a hero worship and a messiah complex for our favorite wall-crawler.

She'll do anything to make sure her Peter keeps her, and she'll do anything to keep him safe, just like he did for her.

(Summary is a work in progress; cross-posted on AO3 and FF.net)