Hey FHS- How painful to find that card! My theory about the OW..she's broken in some major way. Just as your husband is kind of "broken" right now-trying to rediscover who he is...and fix or get through something from his past that wasn't resolved the first time 'round.
No healthy woman, no woman with self-respect, healthy boundaries and healthy self-esteem would walk over the boundary of marriage and knowingly have an affair with a married man.
Whats appealing about her? She's not you...she's different.
That appeal is usually short lasting in the scheme of things..because there's nothing healthy in that relationship to sustain it..and hopefully your husband is progressing down the MLC path, one way or another...
Don't try to compare yourself in any way to the OW..its not about you...and it is not really even about her(you're right-she's a bandaid)..its about your husband coping with alot of internal angst...
Hang in there, detach as much as you can..it is truly helpful..
M44 H46 T21 Married 16y D14 D12 Bomb 12/08(EA), (PA/Separation)1/09 to 5/09 Home/MC 5/09 to 12/09 Leaves 12/09 Files for Divorce Divorce final 6/30/10.