Real guilt is not that easy to suppress. A few days out from C and she is back to her defensiveness ?
Remind her that calling you is an attempt to give you what you need after giving you a very real reason to need that.
Remind her that calling 45 minutes later adds to the mistrust and reminds you that you are not that important in her life. Tell her it hurts again all over when she fails at a minimal test like this.
If she forgets let her see your pain. Nothing else will mess a WW up as bad as showing them how much they hurt us.
Detach from her. Tell her it is because you are tired of feeling this way and since she is not up to it, you don't know what else to do. Then don't engage her, give her time in vacuum to think on it. Guilt will eat at her.
FWIW- She makes dinner and does the grocery shopping ? If that is love she has some pretty messed priorities. My guess it was the only thing she could think of and that is really sad. I'm so sorry man.
DS 1, DD 6
Dday 8/31/11. ONS that occurred 3 years earlier. Lied to for 3 years.