Now, the basic plot:
Frigga sees Loki's soulmark, and bring's Darcy's pregnant mother to Asgard. Darcy grows up there, and eventually she and Loki do get together, I believe, with a bit of angst. What I mostly remember is that Darcy told Loki that he was going to make it up to her, and that they were both going to earth.
That's all I've got, and any help would be awesome, it's really bugging me!