Someday, or Maybe Tomorrow?

Author's note: Thinking of abandoning this fic. I really can't see an ending, so I'm probably going to end it here. Thanks for reading.
Edit: I decided to end it (Check out chapter 17 for the ending).

Pinkie crashed into a tree. The car was totaled. Thankfully, no one was hurt.

"I'm so sorry! I don't know what happened there." Pinkie took one look at the car. She started bawling. "My car!"

Rainbow Dash gave her a hug. "Don't worry Pinkie. Just call the pony who made the car."

"He's dead."

"How is he dead? Didn't you just get this car yesterday? What happened?"

"He died in a car crash today."

"Oh, the irony."

Meanwhile, Lightning was shaken up from the crash. He was shivering and couldn't stand up on his shaky legs.

"Aw, honey! Don't be scared." Rainbow giggled, teasing him.

"I am not scared." Lightning tried standing once more, but collapsed.

"Yeah, sure." Rainbow retrieved Goldie from the mess. She was giggling.

"Again! Again!" Goldie cried joyfully.

"No Goldie, that's too dangerous." Rainbow replied, setting her down. As she stood up, something caught her eye in the distance.

"Oh my Celestia. He's doing it to another mare." Rainbow Dash's eyes widened.

"What do you mean-" Lightning saw it too. "Oh that son of a-"

"Lightning. Language." Rainbow pointed at Goldie.

Lightning couldn't control his rage anymore. He took off galloping and jumped into the air.

"Lightning, wait!" Rainbow Dash said. "Please don't do this!"

Lightning couldn't believe his ears. Rainbow was actually giving up. Of all ponies, Rainbow Dash was the one who didn't want to fight. What was wrong with her?

Lightning paused and turned around. "I'm tired of waiting." He yelled, before taking off again.

"Lightning, please..." Rainbow Dash hung her head and went back to comfort Pinkie. "I hope he doesn't get into trouble."

"So now you're doing it to another mare, huh?" Lightning yelled at Caramel. "What's you're excuse this time?"

Caramel turned around. His eyes widened in fear when he saw the owner of the voice. Then they narrowed. He thought Lightning came back for him. The mystery mare took a step back, afraid.

"I...It's not what it looks like." He smiled. "You came back for me..."

"You hurt my fiance and now you're doing it to another mare? How could you?" Lightning replied. Town Square was suddenly empty.

Caramel suddenly realized the severity of the situation. "Please don't hurt me."

"Too late."

Rainbow heard the front door slam, and a string of curses. Lightning flew into the room and flopped on the bed.

"Rainbow, I know something's wrong." Lightning said. "Out of all ponies, you are the one refusing to fight. We need to fight or flee. Choose one."

"I... can't." Rainbow looked down at Goldie, who was done breast feeding.

"Rainbow, I'm fighting for you. You aren't the same Rainbow I fell in love with. You've gone soft, and you keep a wall around yourself now. Old Rainbow was brash, bold, tough. She would never back down from a fight. She was a winner. Now you just don't want to fight for yourself."

"I do, it's just... Never mind. It's nothing." Rainbow walked over to Goldie's crib and placed her inside.

"It's not nothing. It's everything!" Lightning pulled a hoof through his mane, frustrated. He grabbed her from behind. And kissed behind her ear. "You drive me crazy Baby Blue."

"Zappy..."

"I love you, and I'm trying to help you. Please tell me what's wrong."

"I... If I did, I know you would hate me."

"Nothing could make me hate you." Lightning said. He squeezed her again. "Please tell me."

"I... I still love him."

A weird look crossed Lightning's face. He let go of Rainbow and walked across the room. He closed his eyes, still facing away from her. His breathing quickened.

"I can't look at you right now."

"Zappy, please..." Rainbow said. "I know it's hard to believe."

"How can you love someone who hurt you so much?" He was so angry, his eyes resembled fire when he finally opened them.

"I can't help it."

He turned to her. Rainbow gasped when she saw his face. Pain, anger, hurt.

"You can't help it, huh? So if I walked through this door, would you feel anything? Maybe not. You'll have Caramel to yourself." Lightning started for the door. Rainbow stood there, dumbfounded. "That is, unless he hurts you again. Maybe you don't love yourself, but I love you enough for the both of us." With that, he disappeared down the stairs and out the door.