How long has she known that the other apt fell through? Generally you know long before the end of the month. Juen 1st is this Friday...could knowing this information be the reason for her illness over the weekend? Maybe she's know for quite some time and just didn't know how to approach you and decided to have you take your little one for a while and then bring her to her work place.

I agree w/the others and definitely password your computer and lock down anything that you do not want her to have access to. Her actions will tell you more than her words (as Jack as pointed out).

Good luck!

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.