I do my absolute best to not take rejection personally. In fact, I can say that I've gone so far as to convince myself that rejection was NOT personal, even when it WAS.

I am a firm believer in being honest with oneself, but rejection is a very difficult emotion to process. Therefore, for my own stability, I avoid thinking about it. I can't do much about the situations where I've already been rejected, so there isn't much point in dwelling on them, and in fact spending too much time dwelling on where we've "gone wrong" just sets us up for future rejection. IMO, people tend to be very cautious about getting too involved with people who are sensitive to rejection -- it feels like a setup... like it's only a matter of time that they will be considered "the bad guy" for not responding as the sensitive person hopes they will. "Fear of rejection" is, IMO, one of the biggest priorities to work on in therapy, because that particular fear controls one's entire social and professional life.