I enjoyed this, it's well written and I think it's really quite realistic. In the aftermath of war the rules are made by the victors, and justice can be a bit rough and ready. And the prisons might well be full.
Millicent bore her situation with dignity, and was lucky to end up with Charlie Weasley who, for all his imperfections, has the basic decency and tolerance you would expect in Arthur Weasley's son.
I liked that Charlie wanted to find her something more stimilating to do than housework, that the Dragon Healer recognised her potential and wanted to develop it, and that Charlie would do nothing to jeopardise her chances.