I know in your mind they were legitimate, but they weren't. You found ways to insert yourself into her life and kept on going.I had a legitimate reason for attempting to contact her at the time
Her lack of boundaries doesn't excuse yours, doesn't justify your behaviour or make it ok. She got things very wrong and will hopefully learn from that but you really need to let it rest.
It may be worth considering whether challenging the no contact order is just another way of reminding her of your existence, trying to make some kind of "legitimate" contact - because she will be told you're challenging it. I'm not saying it's a conscious thought on your part but it's something to consider. Let it go, leave her be and get on with your own healing.