Dear T,
Sorry for texting you tonight. I know it's a holiday weekend, and I usually try not to bother you during those. But I'm really struggling tonight, for multiple reasons, particularly because of the stuff with my daughter. I feel like a failure as a mother.
I don't really expect you to write back, because, hey you could be in bed by now. But I just really need some support. (I won't call, that would be way too intrusive...)