So if I understand your timeline correctly, here are the optics in this case:
- Separated or not, your H was still married when you met
him in 1998.
- He stayed married for two more years.
- He got divorced because he wanted to marry you.
- He told you it was his first wife who wanted the marriage to
end,
- He was the bigger more generous party during the divorce
proceedings (aggrieved parties are never that generous)
So here's my two cents worth:
Would it be a stretch to say that maybe first wife wasn't actually the one who wanted the marriage to end?
Perhaps first wife was even hoping for a reconciliation, after all, you met with her and she all but told you she still loved him.
I'm not saying their marriage wasn't in trouble, but the fact that he waited two years to divorce after he met you, would explain her anger....Like it or not, he was a married man and then you came along. From the children's perspective, you broke up their parent's marriage.
After 21 years you expect to be forgiven, but my advice would be to move on. It's very unlikely you will win them over by trying, so don't. If you're tired of putting up up with all the hostility in your own house, tell H to find another venue for his family reunions.