The light finally came on. It was hard to do, but it's what I needed to do. We didn't talk all day. I had sent her an email just trying to figure out child care plans for tomorrow, but she wouldn't even respond to that. Anyhow, I left it alone. When I saw her after work at the train (we still share the car, so contact is a must) I just said hello, asked how her day was and told her about something funny that had happened to me at work. Totally casual and non-provocative. Didn't ask if she got my email or why she didn't respond. I'm realizing that my happiness and mood hinges on me, not her.
