Well, did you propose to him in the first year? If you did you can't marry him until the second year. Or you just need the last house extensene and all the furniture. YOu also need to rescue the harvest moon goddess.
The thing you can do is do your self not use action replay you can't use action replay in heart event you can use only in time,money and house upgrade but not heart event if you want to finish do your self not use the action replay! see ya!
catching trainers Pokemon
Even if you use action Replay, you need to go through the heart 'requirements'. You have to go through black heart event, blue heat event, purple heat event, e.t.c. Don't worry! you can go through the colours even if you passed them. To know when/ where, please vist http://www.fogu.com/hm7/ :)
you can't unless you go to a event or have action replay
You must get it from in a event from wi-fi unless you have an action replay.
Its impossible unless you went to an event in 2006.
Black heart event.
action replay max does but shouldn't(does not work) and i am not sure if the regular action replay does.
you could only get it if you get the "max affection" cheat code
there is no green heart event.
A heart event in all harvest moon is a signal on how much a girl likes you
Im sorry to say but you can not catch the legenedry celebi in Pokemon heart gold but you can get action replay and type in the code for action replay to catch celebi or you could go to the next celebi event