if you are married as of 12/31 of the tax year you are filing, your only choices are "Married-Filing Joint" and Married-Filing Single"
what tax year are you trying to file? what was your marital status on 12/31 of that year?
if you respond with "2018", the deadline to claim a refund expired on April 15, 2022. But if you owe money, you still owe.
