You may be dead set on that, but let me throw this in. Purely date-driven decisions are almost always bad. She hasn't gone ahead with the D. She may be breaking up with OM, which if true, will put in a whole new frame of mind a few months down the road.
You may have reached your limit, and that's entirely for you to decide on your own. We much each do that. But it doesn't sound like she's at all done.
