Did your fiancee claim you as a dependent? Not sure why you are mentioning her return here. If she claimed you that is why you cannot e-file. If she could claim you then you can still file your own tax return but you have to say that you can be claimed as someone else's dependent.
You can print, sign and mail your return since the e-file is being rejected.
Do you fit the criteria to be someone else's qualifying relative dependent?
WHO CAN I CLAIM AS A DEPENDENT?
You can claim a child, relative, friend, fiance (etc.) as a dependent on your 2020 taxes as long as they meet the following requirements:
Qualifying child
•They are related to you.
•They cannot be claimed as a dependent by someone else.
•They are a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.
•They are not filing a joint return with their spouse.
•They are under the age of 19 (or 24 for full-time students).
- No age limit for permanently and totally disabled children
• They live with you for more than half the year (exceptions apply).
Qualifying relative
•They don't have to be related to you (despite the name).
•They cannot be claimed as a dependent by someone else.
•They are a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.
•They are not filing a joint return with their spouse.
•They lived with you the entire year.
•They made less than $4300 (not counting Social Security)
•You provided more than half of their financial support. More info
When you add someone as a dependent, we'll ask a series of questions to make sure you can claim them.
Related Information:
•Does a dependent have to live with me?
•What does "financially support another person" mean?
•Can I claim a newborn baby?
Did you receive unemployment? If your income was more than $4300 (not counting Social Security) then no one can claim you as a dependent unless you were a full-time student under the age of 24.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**