I expect that my children will be impacted permanently by this, even though they are all legal adults now. At our 20th anniversary, the ex and I renewed our vows and dedicated the ceremony to the kids and to "being a family forever!" (Whoops, the other half forgot about that promise, I guess.)
Your kids will be okay but they'll do much better without being exposed to bitterness. I'm sure you'll say that your comment in parentheses was just a joke, but it comes across as bitter. Acceptance is the first step on the road to forgiveness. And forgiveness is the universal remedy for bitterness. Do you forgive your wife for leaving you? Do you accept that she had the right to leave you?
