After Rainbow Dash became a full time Wonderbolt, she started spending more time with Soarin. But however, Soarin was already married to Spitfire and had two twin fillies named Smoke Wind and Cloudee. As Soarin kept on spending time with Rainbow, he realized he had more feelings for him than Spitfire. He and Rainbow finally started secretly dating, and fell in love. Fleetfoot found out, and quickly went to tell Spitfire, making her cry.
As the next Gala was approaching, Spitfire and Fleetfoot teamed up and when Rainbow was about to do a Sonic Rainboom, Spitfire grabbed her wing. Dash escaped the grip, but her wing was hurt and couldn't properly fly well, so the Rainboom event was cancelled. Soarin knew that the only pony who could've did that was Spitfire, so Soarin divorced with her after the fact and proposed to Rainbow. So as the gala closed, Soarin and Rainbow got Married.
A few months later, Rainbow had a son and they named him Sky Dive. Sky was much like his mother and father, a bit braggy, fast, and other things. But as he got older, Spitfire's fillies picked on him for being the son of Soarin and Rainbow Dash due to the past. School was pretty hard because one of Spitfire's kids was the teacher, so he wasn't treated fairly. As 5th grade came around, he got bullied and everything was pretty bad. He finally started harm to himself until somepony came along.
Lol, I'm not revealing who that pony is until later.
Base belongs to: Twiily-Bases
Sky Dive belongs to me
MLP FiM belongs to Hasbro