Not sure what evidence @LBX already has, but I will also point out that given the amount of time you have been married, evidence of a shared financial life in the US would also be important - e.g. adding your spouse to bank accounts, credit cards, insurance, retirement accounts, tax returns, etc.
This is more difficult when one of the spouses is out of the country and doesn’t have an SSN but can be done with enough persistence. You can search these forums for guidance.