Hi! I was wondering, are there guidelines to how an Omega would react to their Alpha's death? Is marking a one-and-done deal? (I just got into A/B/O sorry)
Welcome to the Omegaverse!
I will focus on an Omega's reaction here since it's in the ask. But there is no Official guidelines to reacting to a partner's death. Since everyone is different. But here are some HCs, anyways!
Some markings are a one-and-done as you say. Every individual has to take deep consideration from every view point before mating. This shouldn't be taken lightly.
For one-and-done's the living partner just lost a half of themselves. Never to fill that void in their heart. Even if they look to mate again, it won't be the same.
For example: Sure, an omega's heat won't be as unbearable. But they aren't as satisfied (and I don't just mean physically).
For one-and-done's the living partner cannot take a new mark. It just won't stay. It'll fade just as fast as it appeared.
The living Omega lost their heart and home when losing their partner.
They will seek refuge of their home/nest, sadly their currently home/nest isn't the same. Some will tend to wonder a while looking for a new one.
They can mate again. It won't be the exact same as their first mating/marking, but they'll feel fuller again. More complete.
If they have pups/children they're trying to heal and continue going while caring for their family and how they are taking it as well.