The suggested match for this MP has matching husbands but the dates are way off and I believe it could cause confusion if merged.
https://www.geni.com/merge/compare/6000000007521705599?to=600000000...
To me, it looks as if the "ex-husband" on the duplicate is an error and should be disconnected and merged with the husband of the MP.
Beyond that, the two Isabellas are not a real match and definitely should not be merged.