Married a non US person, how should i file my taxes

Hi,

I have 2 questions:

 

Question 1:

I got married in December 2025 to a non-US person. He works and lives in India, hence has no SSN or ITIN here.
When i try to file my taxes through turbo tax, as married but filing separately it gives missing SSN/ITIN error (even though the field is optional) .
I ignored the error and continued filing rest of the details. I have 80k capital loss carry over from previous years and I was able to claim $3000 last year, but now it only allows me to claim $1500, when filing as "married but filing separately". Is there a way around this?  Should I file my taxes as single, since my spouse is not here and wont be for foreseeable future.

Question 2:

I have some capital gains this years, can I claim more than 3000/1500 capital loss carryover to offset the gain?

 

Thanks,

Gauri