Try no to let it bother you, you can lose some major cool points by acting suspicious about it.
Act like it didn't bother you at all. She may even wonder why you're acting that way. If she skips out a second time just calmly tell her that you're starting to get the impression she doesn't want to go. Then drop it, and keep moving with your previous plan to move on.
The whole point is that she needs to go of her own free will. If you nag her about it or drag her to the therapist you'll just waste your money. If she refuses to go just chalk her up to her unwillingness to make amends and move on. At the very least go dark.
