Today, I stumbled upon info that didn't seem right about my husband so I read his email.  He knows I have the password and can look anytime.  I usually choose not to, but today I did.  I found tons of messages/texts between he and another woman.  They apparently met twice last week when he told me he was obviously elsewhere.  They have all kinds of nicknames for each other and he was saying things I haven't heard him say to me in years.  The beginning of the messages on email/facebook date back to the start of November but who knows how long this has gone on for.  The knife in my back is that about 4 years ago, I found out about him doing this exact thing with some other woman.  We went to a therapist and I really wanted to forgive him so I did.  I can't believe I'm here again.  My kids are 8 and 4.  I don't want to ruin their Christmas so I told them their dad had to travel for work.  The truth is I threw him out and told him there is really nothing left to say between us.  What do I do now?