I was just contemplating my situation which is similar to what you are going through.

I, too, have noticed that I am feeling absolutely nothing, which is extremely odd because I am a consistent and rapid cycler of moods. I have been in your situation (w/ bf) many times.

I just read about something called "splitting" that occurs with Borderlines, and I was wondering if we were kinda stuck between the two preceptions we often have about the ones we love. It's like being stuck in an emotional-less limbo until we ascertain which way we will choose to respond to the trigger event.

I am not sure how to interpret this non-emotional state. It's kinda freaky to me.

I hope by adding my "2 cents," we can find out more about this weirdness, if you don't mind.