I want to give you any support YOU need to get through this."
If this is true, then you will IMMEDIATELY talk with the principal and tell him of the affair. You will ask him to ensure that OW will not be at your school again. If he cannot make that assurance, then take a leave of absence or quite and find another job.
Why are you making the children you teach more valuable than your wife?
I also told her that she should talk with a counselor. She says that she feels dizzy and sick.
OF COURSE she feels dizzy and sick. She has just suffered to most traumatic thing she probably ever will in her life. Dr. H says that for some BS's, the betrayal of infidelity is more painful than rape or the death of a child.
You wanna know what she's facing?
Triggers will hit her out of nowhere and consume her. She'll feel like she can't breathe and the world will spin.
She will have no appetite and may vomit at times after eating--most of us lose 20+ pounds in a matter of a few weeks.
She will not sleep well and may have nightmares about you and OW
She will see visions in her head of you and OW.
Even when she seems "fine", the affair will be playing in her mind continuously for a very, very long time.
I need to find some way to help her.
Then I suggest you read and learn everything you can about Dr. H's program and start working YOUR end of if without expecting her to work her end right now.
I suggest you take an immediate leave of absence from work if the principal cannot assure OW will not be called there.
Change your cell phone number and email and any other avenue you have used for your affairs.
Write a NC letter that your wife approves and mails herself.
Get Dr. H's books Surviving an Affair, Love Busters, and His Needs Her Needs and start working!
Better yet, schedule an appointment with the Harleys or sign up for the online seminar.
Answer every question your wife asks you honestly and openly without being resentful.
Expect this to takes years to recover from.