When you reach best friend status (10 hearts) with a marriage candidate, you unlock all the remaining steps to making a marriage proposal.
The next day, you will get a letter from Mayor Lewis: “I'm going to give you this advice because I like you and I want you to stay in Pelican Town. You can find him on rainy days at the tidal pools on the beach (across the bridge you repaired).
To accomplish all that, you will also find it necessary to complete two more things along the way: Romance can only begin once you have reached 8 hearts with a potential partner (where friendship levels freeze for marriage candidates).
The wedding ceremony does not take place on a day that another event takes place in the town square.
If you want to show someone that you're romantically interested, you've got to give them one of my beautiful flower bouquets. If you want to start a family someday, this is the first step!
” Giving the bouquet unfreezes the friendship level with that individual bachelor or bachelorette, allowing friendship to advance.
They'll also have a unique area outside the farmhouse where they'll relax outside.
In addition to their room inside the house, each spouse has a unique garden area behind the farmhouse which was introduced in update 1.1.