You must get all four Rival Heart Events. After that they will marry and Vaughn will move in with Sabrina.
No she wont because vaughn is her programmed husband and your rival so if you marry vaughn she wont get married
No you can't. Once a rival marriage happens there is no way you can marry either person in the rival couple. They are already married and have no interest in your character anymore. If Vaughn has married Sabrina you have no choice but to marry someone else or stay single.
If you have Vaughn on any hearts, you can still marry Will. But you cannot marry Will if yo have already married Vaughn
Vaughn Blue
Have a forest.
To marry Vaughn you must be playing as Chelsea. If you mean do you have to have Mark, then yes. You can not get married until unlock all the main characters.
There is no day you have to get married. In Harvest Moon DS you can get married whenever you want.
milk
Purple, like all other bachelors/bachelorettes in Harvest Moon Games!
They come when you first go to the mine in the mountins. You have to buy the bridge to the forest first. The day after you go to the mine for the first time they will come to the island and they will live there. (Watch out for you girls who have there hearts set on marring Vaughn, Sabrina will try to marry Vaughn befor you. So watch out for her try to marry Vaughn befor she comes. But if your heart color drops below yellow Sabrina will take Vaughn from you so keep your heart color up to a red color and you'll have nothing to worry about!!!)
You can get married in all the Harvest Moon games.
yeah.