Jessiexie,
1st and foremost ask yourself some questions and
answer truthfully. You do not need to tell anyone what your
answers are.
What do you want out of this relationship knowing that he is
married? What if he never will divorce his wife for
you? Will you get what you want ultimately and will you be
happy with it?
I understand that you are in love with this man now and may not
be able to think rationally. Afterall love is blind.
However, give things some thinking through and ask yourself what
life is going to be like carrying on with him as his mistress if he
does not divorce his wife. Also think about what life will be like
if you are able to wake up tomorrow morning and forget about his
existence in your life. Will you be happier and more able to
perhaps meet someone who can truely love you and perhaps even
settle down to start a family together with you someday?
Besides, spare a thought for his wife and children if there
is any. Put yourself in their shoes try to imagine how
it will feel like. Anyway most married men flirt around to
make themselves feel good. At the end of the day, when they
need to make a choice, they will go back to their family and you
will be on the loosing end.