I think I understand why she has behaved in such a way.
I am going to try to give you a gentle telling off, while still making my point, because you clearly love your adult children very much, but the bottom line is she was right - you are controlling, even if you don't mean to be.
You are completely, utterly and totally over-invested in their education, and in every little detail of their lives. You are the ultimate well intentioned but slightly barmy helicopter parent who just won't let up. I bet as young children they had so much extra curricular 'enrichment' they couldn't think straight.
I'm sure you will be rewarded with a highly successful DD to boast about, but possibly a rather unhappy one. Or perhaps she'll be very happy indeed by ploughing her own furrow, and you'll be distraught at what you see as her betrayal of all you've tried to do for her.
Perhaps now she's had a year or two of freedom at uni she has decided to assert herself against your endless micro-managing. She's behaving like a rude, stroppy, spoilt child of course, but then again so are you, a bit. Just look at your OP title. And now you are backpeddling and downplaying how you really feel.
You have stropped, sulked, stormed off and announced that you never want to see her again (hopefully just to us) when she decided to throw you a few curve balls, and refused to jump when you say jump.
You haven't brought them up badly, you've just struggled to trust them to know their own minds, make their own mistakes and fight their own battles. That's not a crime, but it can, and usually does come back to bite you. I know she's behaved badly and let you down at Christmas and that is very sad for you. But I think she's trying to tell you something. Learn from it. 