Could it be a struggle for control? Maybe she is trying to rebel and take a bit of the control back that she willingly gave up in the beginning? We all understand about real life, but I would have to tell you to trust your instincts. From what I can tell, many doms/dommes know their subs really well even if it is over long distances. Go with what your gut is telling you. If she is truly doing it for important life reasons, or just to misbehave.

I'm pretty new and just beginning to understand a bit about the bdsm lifestyle, but really I think it comes down to respect. A text takes a while of 15 seconds to write. A e-mail about the same, even if it's "i'm thinking of you." Any open communication is good communications even if it's "hi."

One thing I have found is that respect is so important. It is all about a strong foundation and respect is a huge part of that. If it's not there, then is it worth fighting for it, forcing it or just letting it go? I guess, is she worth fighting for, forcing or is it just a relationship that needs to let go?

You deserve to be respected, as I'm sure you respect her.

Just my 2 cents.