I just don't know what she'll do. Is there a typical response from a spouse in an A after the boundary speech?
First of all, this should not be your immediate concern. You're not doing it to get a "response" out of her, you're doing it for YOUR own integrity and emotional health.
That being said, one of three things typically happen:
1) She goes absolutely batchit-crazy LIVID at you;
2) She suddenly acts very NICE towards you, but she's doing it because you've upset her equilibrium and she's not quite sure about you yet so it's fake, and she's just feeling you out;
3) She suddenly acts very nice towards you, but it's out of genuine RESPECT (and even some attraction) for the boundary you laid down.
Sometimes, 2 or 3 can quickly follow a brief period of 1: she may immediately go nuts, but then soften in a day or two as she sees you're not backing down.