Yes you can, but it is better if you say the right things because then you get more love points with the person and it won't take long until you go to the next heart lvl. But it also depends on what gift you give them and how many love points you will get from it.
Yes. But don't worry. For instance, you don't see the purple heart event. But you can still view that event anytime after or during purple heart with her.
you have to do the purple event you can still do the purple event as blue then do the blue event
Just go back and activate it. Heart Events must be gotten in order (Black, Purple, Blue, and finally Yellow). If you do not complete the Heart Event you missed you can't do any others. You do not have to lower her Heart Color back down. Even if you have a higher Heart Color than necessary the event will still work.
If you have Vaughn on any hearts, you can still marry Will. But you cannot marry Will if yo have already married Vaughn
Yeppers.
Yes. But don't worry. For instance, you don't see the purple heart event. But you can still view that event anytime after or during purple heart with her.
Yes. it's required to marry someone. Each girl has a heart event at black, purple, blue and yellow hearts. If you missed one, you do not have to go back and do it in order to marry her. You can still do any heart event if you skipped that color heart.
yes. Many other chances, my friend.
Yes. She is the "special" bachelorette. Her Heart Color is invisible but you can still marry her.
No, you don't. You need to activate Flora's blue heart event for the hot springs to be opened. You can still marry another girl even if you have seen Flora's events.
No, you must get every Heart Event and complete the rest of the marriage requirements if you want to marry Gray.
You cannot redo a heart event once you mess it up and saved your game which I'm assuming you did, but messing up a heart event does not ruin your chances with any one (as in you will still be able to marry them once you've met the requirements for marriage) you just lose Affection Points and possibly Friendship Points.
you have to do the purple event you can still do the purple event as blue then do the blue event
Yes. I was, myself, going to court Julia. She (much to my dismay) experienced a black heart event, but I tried my best not to experience another one and I was able to marry her. We had a child ^^
Yes,You can.
Just go back and activate it. Heart Events must be gotten in order (Black, Purple, Blue, and finally Yellow). If you do not complete the Heart Event you missed you can't do any others. You do not have to lower her Heart Color back down. Even if you have a higher Heart Color than necessary the event will still work.
You can lower his Heart Color by giving him gifts he hates. His least favorite item is Carrot. But you do not need to lower his Heart Color to see the Yellow Heart Event. It will still work even if you have an Orange or Red Heart Color.