I showed my wife-to-be any and all pix of ex-es. Up to this day,
she knows who played a part in my life, and what part they played
and how they shaped my life, good and bad. That is PART of our
sharing and communications.
Also told EVERYTHING, right down to nitty gritties, good and bad,
even about my previous sex life (of course, sparing her the dirty
details lah!)
Once, my CHEEEEBAI X called me at my fiancee's place. Her brother
picked up the call. He told her mother. Her mother gently and
sensitively spoke with her because her brother and her was worried.
At that point, and till now, that CHEEEEEBAI X owes me $$$ big time
(5 figures!)
Anyway, she told her mother that she already knew that me and my X
were in contact because I was trying like SHHIT to get my money
back!
Imagine the mistrust and doubts my fiancee would have had if I
didn't tell her everything.
The truth? How open and true to your own personality/self is
largely dependent on how comfortable and secure your partner is
with herself in life , and with you. 
