Even I know most of the time it's irrational but I can't help but cry over the "what ifs" and then cry even harder out of relief if the person in question turns out to be (surprise-surprise) not abandoning me. 

However whenever try and explain it regardless the situation to people unfamiliar with BPD I always feel like my explanation boils down to "I misread the situation and now I overthink boo hoo" 

Any better ideas?