I've been accused of cheating & all I did was communicate with a girl in Colorado. She's cheating in the flesh,, and I want to find out with whom.
Please help if you know how I can get her "Hotmail" passowrd. I used to have it but she's changed it and her security question is "Who was your best childhood friend".

Often when a spouse is guilty of cheating they will accuse you of it to try and justify their denial that they are doing anything wrong.
Then they will claim you cheated first to further their justification of why they are cheating.
Talking to the girl in Colorado probably just gave her the excuse she was looking for.

Have you talked to her about her cheating and asked her to stop and work on your marriage?

Right now with the little you have said I think you should look for other red flags because I doubt you are going to get anywhere with her email. She most likely deletes it all anyway.

Do you think this is strictly internet or do you think she is meeting him?

Since she is accusing you use it as a step toward telling her then maybe we should see a counsellor and get all this out in the open and work on our relationship.

See what she says to that.

Getting and using someone's password without permission is illegal. This site will not suport or condone illegal activities.

When the trust is gone from a marriage the marriage is basically over. If the trust is gone, then you have bigger problems then getting into your wife's e-mail.