Give the mate option of your choice their favorite gift until they have 4 stars, then give them a bouquet from the shop to be their mate. Give them the gift you were giving them before until you have 4 hearts and give them a diamond from the shop to marry them. (I know Robin loves fox pelts but not fox meat and Dusk likes prey and not plants)
They're called the Minus world and Futurescape actually. I also really loved this game and the ending made me cry multiple times... It's a great game with a great ending and I'm glad you really enjoyed it too!
Let her speak, walk left one and then back to find her dead. Don't approach her body, go to the left three times and grab the rose. Go back and place it on her body, then walk left and back again. Approach her body. Make sure not to walk up to her until you've placed it AND walked away then back.
This game is CRIMINALLY underrated. I realized there weren't any videos about it on youtube and posted my own. It's a recording of the final ending so there will be spoilers. I can't wait for the bigger project.
