My wife and I got married a few years back and the plan was always to get her residency in the US and then citizenship and then move back to her home country. The more I think about it though, the more I don’t want to spend 3-5 years back there. For those who have spouses with citizenship, why did you do it? For those with spouses without citizenship, are there any benefits you’re missing out on based on them not having it?
My husband and I are in a similar situation, we’re relocating to the US (my home country) and the plan is to get him citizenship then leave again. I’ve done extensive research and from what I understand your wife may or may not be eligible to return to the US if she abandons her permanent residency. To keep permanent residency she’ll need to be in the US for a certain amount of time each year or risk losing it and being denied entry back into the US. If immigration even suspects that she is not a true permanent resident then you risk all sorts of issues. https://shorelineimmigration.com/how-long-can-you-live-outside-the-us-without-losing-your-green-card/#
For me it was simple, the US is always there to fall back on if we are both citizens with the job market, family, etc and it’s worth him getting citizenship so we don’t lose that access even if I intend to become a dual citizen in his home country afterwards.
Honestly if she’s not going to get citizenship then why not just move to her home country and skip the US step? She’ll have dealt with a ton of bureaucracy and paid a good amount of money for her green card just to abandon it a few years later but that’s just my two cents.