The trips should be less than 6 months.

Your trips do not appear to have broken continuous residence.

This should not impact your immigration case.

I agree with my colleague. Follow the guidance from the visa reciprocity chart.

The prenup should not detrimentally impact your immigration case.

Based on information provided, it is not recommended to travel on AP.

I agree with my colleagues about checking with pension provider.

No not if you are not entering as a crew member.

Yes most likely if the divorce was not properly completed.

No you may file the waiver at time of medical.