I agree...your w wasn't angry with you, but at herself and life in general. She knows she's messing up big time and things aren't always working out the way she wants them. She knows that she should have made some time and come to see the pups and she just wanted you to feel guilty for the pup not being there. Don't buy into her misery...that's all hers these days.
Keep up the good work!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.