Even if you have a higher Heart Color than necessary, the Heart Events will still work like normal. You must get them in order starting with the Purple Heart Event:
Purple Heart Event:
» Walk from W.Town to E.Town
» 9:00 am to 5:00 pm
» Sunny, Clear, or Cloudy weather
» This event can occur if Vaughn is not on the island
» Denny must be living on the island
» Vaughn at or above a purple heart color
After this you can move on to the Blue Heart Event. The Blue Heart Event will be different depending on what you say during the Purple Heart Event.
Get to activate their heart events, give them stuff they like, and eventually theyll have hearts for you
When you have your girl/guy at 10 hearts, experienced all heart events, and have the blue feather from buying it at Chens then you can marry them. Doesn't matter when.
10 hearts
2 Big hearts-- Maximum happiness.
You can either: Have Poketch App #6, which tells you your pokemon's happiness when you press and hold it by the number of hearts that appear above it. If it has two large hearts, it means it loves you the most, whereas no hearts mean its happiness is 0. You can also go to Dr. Footstep's house on route 213. If your pokemon's happiness is at max, he will give it a ribbon.
when you talk to it if it has six hearts around it that means its at max happiness
He evolves at any level with MAX happiness(you can check your poketech app, the one with hearts over your pokemon. 2 hearts=max happiness.). But, you must level him up with max happiness during the DAYTIME.
suck it
1- you have not completed all heart events (it's alright to say the wrong thing btw) 2- She doesn't have 10 hearts
In Diamond, Pearl & Platinum, there is a Pokétch application called "Happiness Checker" that will show you the happiness of your Pokémon in your party simply by tapping them. It will be shown as hearts. There are various levels including one small heart, two small hearts, two big hearts and two large hearts. The two large hearts being the optimum happiness level. To obtain it you have to talk to the Woman in Eterna City's Pokemon Center. To evolve Pokémon via happiness, it must have two large hearts and, once that is done, you can evolve your Pokémon by making it raise a level either through battle or a Rare Candy.
Destiny Islands.
Well i know that if you beat kingdom hearts 2 on proud mode, theres a special destiny islands alternate ending and a sneak peek into kingdom hearts 3. Is that what you meant?