@Javin3 The cancellation policy that applies to you is the one that you agreed to when you placed the booking. Nothing in that policy states that there's an exemption for personal or financial issues. Congratulations on your engagement and welcome to reality.
Airbnb is offering exemptions to hosts' cancellation policies for trips affected by Covid19 and related travel restrictions. The currently eligible time frame is bookings with check in dates up to 31 May,;this may be extended further, but it remains to be seen whether it will go all the way up to September.
The best thing you can do now is follow @Mike-And-Jane0 's advice and claim on your travel insurance. I mean, nobody would book a honeymoon without buying travel insurance,, right?