Harvest Moon More Friends of Mineral Town: Get Married

Same like Harvest Moon Friends of Mineral Town and Harvest Moon Back to Nature, you will need to expand your house with a help from the carpenter near your farm and the magical blue feather from Won or Supermarket.

I say, go to the Supermarket and buy that feather. Won sells the exact same blue feather for crazy price.
:p

In expanding your house, try to work on the lumber by yourself if you have the time, then maybe, buy 15 or 20 lumbers from the carpenter. That way, you can save a lot of money.

When your guy's heart isn't red yet, don't show the feather to him, he won't accept it anyway, and he'll lose his heart for you.

Marriage is a choice, don't push yourself too hard if you have other aspirations, such as farming or cooking.