What? He "somehow had a wedding to another woman" while still legally married to you? Just me---but I would not believe a word that comes out of his mouth. If he is dishonest enough to "have a wedding" while married to you, he is dishonest enough to lie to you about how he filed his tax return. Maybe he is also lying to the "bride." Who knows?
Do you have custody of any dependent children? If so, you could file Head of Household if you lived apart from him for at least the last six months of 2024. Otherwise, you should forget filing a joint return with this man, and file married filing separately. You might need to file by mail if it rejects due to duplicate use of his SSN.
Get some legal advice asap.
**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.**
