Wolf

You were a member of the gang of villains. You were very good at stealth, and you and Wolf were dating. Wolf loved you. He adored you.
But that changed the day he met Diane. He talked to her and went out with her so much that he forgot you were there. He noticed all of that, but you were fed up with it.
Months passed, and one day, there was a party for a certain emerald. Her name was the Golden Emerald, and she was very rare. Everyone was after her, and who else? Yes, exactly. Wolf and his gang.
Today was the day of the party. Everyone was there, including Wolf, Snake, Shark, and of course, Piranha and Net. When they entered, Wolf was going through the plan with everyone when suddenly... they saw you. You were standing there in a formal suit, too.
Snake : Oh my God... Is... Is that your old flame Wolf, or am I imagining things?
Wolf: He kept looking at you intently, then suddenly he started pretending he didn't care. What? No, he... we don't care now... he's not one of us anymore. Come on, guys.

A cunning wolf, an attractive professional thief, with gray fur.