On harvest moon DS how do you get Muffy to love you?

It mostly depends on how hard you're willing to work. If you just give her a flower everyday, it could take until fall. If you take her flowers, talk to her, go to see her, be nice to her boss, and buy a lot of drinks, you could be married by the end of spring. Or you could cheat and just get her hearts higher than all the other girls, she will come to YOU in the game cube version. Of course, in the DS version and GBA versions, it can take a lot longer, and you will have to wait at least 2-3 years if you try to keep of with the rest of your life. If you just seel your soul to her and spend all your time trying to woo her, you'll probably be married by winter. Be careful, if you wait to long your rival might beat you to the punch.