TE,
She got involved with a married man. This not only shows a lack of character but a sign of sickness in her brain. What healthy, "normal" woman - who had decent self esteem and self control gets involved with a married man? You mention that she had a child....and she willingly moved in with a married man - with her kid.....

?
I'm sure that your H told her all kinds of lies....but she chose to believe them. If he had been serious about a relationship with her - he would have done the right thing and NOT gotten involved with her while still married. He wouldn't have just moved in with her so quickly.....She shows a lack of good judgment.
Is she more educated? She certainly isn't smart.
Is she funnier? Does it really matter? I wonder how funny she is now?
Is she slimmer? Prettier? Those questions are just your insecurities getting the best of you. I get it. I do.....Just don't let this get to you.
Don't allow yourself to get into a contest with the OW (even if it is just in your head).
Your H took up with an OW - to avoid dealing with whatever issues he had. When the OW is described as a "band-aid" - it is an apt description. She means NOTHING. NOTHING.
I understand your feelings...and the insecure feelings you are having. We've all had them - when your spouse walks out on you and gets with another person...it is a terrible hit to our self esteem.
I know that you know your H returned early. There will be ups and downs. It will be tough on him....it will be tough on you. In order for you to be able to deal with this...you need to be strong...self confident.....healthy.....as he will cycle.
I can't see how learning anything about OW will help you.
JMHO.
L
M -65, ExH - 71 (57 at BD)
M - 33 years (did the last 3 years count?)
D - 35, D -31, S - 31
BD 5/29/2010, Ran away from home - 8/15/2010,
Found out about affair - 2/11
H asks for divorce - 8/11
H filed for divorce 10/11
Announced "new" girlfriend 12/12 (3rd OW)
Divorce final 06/13 (I decided to finish it)
Dumped OW#3 9/15 (After 4 years)
Married OW#1 2019
OW#1 filed for divorce from ExH 9/24
ExH divorced - 5/25
ExH now seeing OW#2 - High School girlfriend - again
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