Because you used a preparer, I agree the preparer should fix this.
For 2022, you should not have included form 5405, you should only have made a payment on line 10 of schedule 2. You would need to look at what the 5405 actually says--did the preparer say the credit was transferred to the new spouse (that would be incorrect). I can't think of anything else the preparer would have said on that form. You simply owe $500 because you got the house as a single person and that responsibility is not transferred to your new spouse.
Because you stopped using the home as your main home in 2023, you are supposed to file form 5405 with your 2023 tax return, that will report you moved out of the home. Assuming you sold the house for more than you paid, the remaining credit balance will be due in full when you file your 2023 tax return, and that will close out the issue for you. (If for some reason you had a loss on the property, the remaining credit balance may be forgiven, it depends on how the math works out and what kind of loss you had.)
