Agreed, this is hard to see as valid marriage for immigration purposes. Even if OP starts meeting more frequently, it would look weird having 10 year gap of not seeing each other, with visits ramping up before filing new immigration paperwork. I'm skeptical any immigration benefit can be obtained through this relationship.
Explanations like "busy life, COVID" don't look compelling at all. COVID was 5, nearly 6 years ago now. I'd argue POTUS is way busier than any of us are, and still manages to spend time with his wife. Is it that impossible to see each other once a year, even once in two years? It doesn't look like marriage was a priority for the past 10 years.