2 Post - learning too slowly

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I foresee a time in the near future when my wife will openly leave the house dressed up to impress other men. She will leave with only a cursory explanation of when she intends to return (for the kids). The old me would implode under these conditions. The suspicion and anger and pain would be unbearable.

I know this because she has said that while we are separated and our marriage is uncertain, she feels the right to seek company elsewhere. She says that she has made physical changes that people notice and she wants to "get out there". She used the analogy of a new car in the garage that she isn't allowed to drive. I have a clue what's coming.

What are some strategies to keep from driving yourself insane while you work to fully detach? Ideas, tips, please!?