Couples who are living-in during this quarantine period, probably have got married within the house just like Big Boss seasons or maybe will be living-in with different people when this quarantine days get over.
On the other hand, couples who will be meeting each other after completion of quarantine days, probably will be getting married at the earliest date or will start living-in as sooner as possible.
This is called "Couples-Love-Cycle"
-