What do I do with 2021 returns when we applied ITIN a year ago not yet approved?

We are overseas and got married in 2020.  We applied for ITIN for my wife in early 2021, and submitted all necessary forms plus my 2021 tax returns for the application.  I filed as 'married file joint' with the anticipation that her ITIN would be approved.  But it has been over a year despite multiple phone calls to IRS with the same answers ... "We are back up".

 

Question now is I'm not sure what status I should file this year.  I would be inclined to file as "married filing separate" to keep things simple until we move back to the States.  If it's officially rejected then it would make my decision easier., but because the previous application is still in limbo, it may create confusion with different filing status in different year.  Please advise.