My BPD has apparently gone into remission, but I'm still having the same issue with reading that I have had since my initial episode: Unless I'm in a waiting room or generally waiting on someone, reading to pass the time, I can only read books in very short bursts....
So, here's what I do (!): I schedule appointments and make plans, but arrive at the location (or somewhere nearby) early and just read to pass the time until I meet with the person. Works wonders for my reading, and always gives me all sorts of interesting conversation points.