Hello!
I had health insurance through the marketplace for March and April for 2023, and received a tax credit based on my income. In May I started insurance under my fiances plan so I didn't need it through the marketplace anymore, so I canceled it. In July we got married. I was starting to file - married filing separately. It said I owed the tax credit from the health insurance marketplace. I was not married on March or April when I received that tax credit though. We are filing separately because on my federal students loans I put that we were filing separately so they would base my payment off just my income and not ours together.