First choose someone you want to marry, you can choose who you want, but alot of times people choose janet, as she is in close proximity to your farm.

You have found your love, now im pretty sure that you have to choose someone who you have done work for, but now you should go talk to them everyday. If you have done work for someone, they should have a green happy face above their head.

ok, now your girlfriend (or boyfriend?) has a green smiley face with hearts on its eyes. continue to talk to them each day, occasionally you can give gifts, you can give them some flowers which you can get from the general store next door to your farm, if you want to give them an expensive gift, you can buy a ring or perfume from the general store, but you can find rings and perfume around the map in old chests, i found some perfume in the chest inside the barn, and i found a gold ring in my attic, but chest's contents vary for different saves. You can also grow flowers yourself. Seeds are bought from the Agriculture shop

Nice job! you are now at a very high relationship point with your "friend". the little emoji above their head needs to be a red heart. If it isn`t a red heart, you still need step 3. If you wish to you can give them a gift even with a red heart, though i dont know the benefit of doing that. you should now have in speech options, there should be an option where your character will ask them out, hopefully they say yes, but if they say no, i dont know what to do, i have never heard of that lol.

If it happens that your spouse says yes, then a cut scene will occur of you and your wife get married. be sure to get some screenshots by pressing F12, it will automatically skip the day and when you wake up, your spouse should be next to you in bed.

The End!