What if, Barry Allen got over his infatuation over Iris and instead was smitten by someone he never expected, Dr. Caitlin Snow. One Day a mysterious Speedster clad in White and Yellow Lightning, appeared from the future, and He's from when they all never expect. (P.S I got inspired to make this by the amazing ButterflyBlueEyes from www.fanfiction.net and you can read her amazing Story titled "Scarlet Angels"