I could not begin to comprehend why he would send an email like that, however I'm sorry to say, I think you are trying to read something in it that is just not there.
If you want to restore you marriage, you should work toward that end. Is there a reason neither of you have sought to finalize your divorce? You said that you have someone in you life, is that just to fill the void left by your H?
Me 54 DS19 and DS17 Married 06/1989 Divorced 01/2011