IslamicAnswers.com: Islamic Advice

I am married but committed adultery with my Christian ex-boyfriend who wants to accept Islam and marry me

I am a married Muslim women married to a Muslim man for 7 yrs we have 3 children. My marriage has not been very good for about 4 yrs now but continue to stay in it due to my children. Prior to my marriage to my husband i lost my virginity to a christian man at a younger age, he moved and we lost contact. I have since found this man via the Internet and we have been talking for the past year, we have since committed adultery and i feel horrible about the sin i have committed.