Dear LIB readers; my husband is constantly comparing me with his exes

From a female LIB reader
I am married to a man who constantly
compares me with his ex girlfriend to
my face!! Each time there is a little
misunderstanding he constantly
reminds me of how well his ex-
girlfriend understood him and treats
him. What does this mean and how do
I deal with this? I am confused!! I have
told him severally how well I hated it
and he doesn't see a big deal in it, he
doesn't even care how I feel about it.
How do I get him to stop it?