Unfortunately there's no such thing as "de facto" in Thailand. Many other countries do recognise that if you've lived together for a year despite the incorrect postings by others (Australia for example).
Good luck that's a really hard situation for you right now. I decided to stay in Thailand to avoid the risk of being separated long-term from my Thai family.
imagine how expensive the flights will be if they can't bring passengers into Thailand and can only take 50 per flight back to Australia....... I saw one the price was 340,000 baht.......