Good job on staying sober through this difficult time! The other people in the card group supported your decision to ask this person to leave, so you know you made the right choice.
Sometimes when people make the right choices, they catch a lot of flak. Keep in mind that this guy is behaving poorly: sending you scathing e-mails and saying his wife never liked you is completely inappropriate behavior.
In a weird way it encourages me to stay sober even more, because if I was still drinking and acting a fool it would just give them more ammunition. As it stands now, I believe I handled myself with class and dignity and I AM very proud of myself. :-)
Way to go!