I ended up starting the Lexapro the night I voiced my concerns. The final decision was made after a long talk with the Hubs where it was made clear that we are both going to need some help to get through this. Either medicinal, or otherwise.
I didn't take the Xanax until last night. It seems that one of the side effects of the Lexapro for me is insomnia. Since I was already an insomniac I was at my wits end after not sleeping for a few days. So, I took a Xanax last night and had the best nights sleep I've had in a long time. Which is unfortunate since I've just recently kicked an Ambien addiction. I really don't want to add Xanax addict to the list.
So, it seems for right now that there is better living through chemistry for me.