First wonderful art, as usual.Ok there must be one amazing story for this cause as far as I can think. There has to be one to get these two together.Let see. After some time away and personal changes, Gilda returns to Ponyville to apologize to everyone and make amends. Of course they forgive her and all become friends causing her to stay and live in a cloud home near Dash, her re-united best friend. Though being different she finds it hard to hook up with anyone. One day she runs into Spike sitting near a pond with a sad look on his face. Rarity found a boyfriend and he foolishly pushed his love on her causing a fight. Gilda comforts him and after a while gets him to laugh again. Over a month or 2 they see each other often and their friendship grows. Though even more so, Spike begins to have feelings for Gilda. Gilda begins to sence them with all the things he does for her with out her even asking. So one day she confronts him about it. They fly off to be alone at one of Gilda's favorite spots. After spending that time alone. Gilda begins to start to think...... and this is were it starts to go 2 ways for me.Either she thinks she would not mind having a Dragon lover and they start to date. Thus leading into a wonderful romance or heartbreaking brake up.OrShe ends his feelings for her cause he is just to young. They stay friends and share a warm hug before heading back. Though that does not fit to well with your picture.Did they write a fan fic or was this just a whim of theirs. Still, fun creativity.