^Good luck if you think you'll be able to control your partner's thoughts and feelings. In any case, I'm not sure I agree with the whole e-affair concept. This idea is a relatively new concoction of the 'professional' psych/counselling community. I think its created more problems than its solved re: relationships.
We aren't responsible for our thoughts. Only our acts of will.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh