talaaq via email

In July 2011 I had my second Nikah with another woman. A couple weeks later we had a discussion and by EMAIL I give her one Talaaq. She was at my mothers place but I did not know. After 2 days I picked her up and said to her that I am taking you home. My mother and Father cried and said to me to do this never again. But in January 2012 we had a discussion again and trough a sms I typed the next line: With my heart I give you Talaaq, Talaaq, Talaaq. The meaning was to scare here and not divorce here. And after five hours she come back home and since then we live together as husband and wife. We dont have any kids. On both the issues she had menses. Mufti I know that Allah s.w.t. is very mad but my joy in my eyes are gone.
Is my second Nikah Valid?