A/N: Hey! Huge thanks for the reviews to ay2001, Rebb R-001, Rorscarch, Sabrina Kelly, FrostyJudge and Maylinn17!
Hope you all enjoy this one! It's based on a prompt from Rorscarch.
I don't own Phineas and Ferb.

"Fine!"

Isabella stormed out of the room, slamming the door. Rushing into the bedroom, she slammed the door again, furiously locking it from the inside. Only then did she sit down on the bed, resting her head in her hands. She took a deep breath while still shaking a bit from anger and helplessness. Lifting her head up, she noticed a small droplet on her palm.

Phineas sighed deeply, still sitting at the kitchen table. He glanced at the door, behind which his wife had disappeared a moment ago. Leaning back in his chair, he looked miserably at the floor. His head fell involuntarily into his hands.

It wasn't like their relationship was perfect. Phineas, with his mind always occupied with inventions, tended not to pay enough attention for daily things every now and then. With Isabella's short temper, there was no way not to quarrel sometimes.

They knew there was fault on both sides. Isabella would burst out yelling, but then soon realised how unnecessary it was. Phineas quickly understood what bothered her, but automatically defended himself.

They always felt terrible after quarreling. They hated sitting alone, and not being united. Something didn't feel right. Staring empty at the windows, they were dying to finally make up.

Isabella longed to simply go to Phineas, hug him tight, and apologise. And yet, she couldn't just gather herself, get up and do it. Undecided, she kept standing up, then sitting down again. Finally, she made a decision.

It's time to put that stupid pride aside, she thought. It's not like we're going to prove anything to each other.

She walked up to the door, turned the key, and opened it vigorously. She gasped in surprise as she saw Phineas standing on the other side, his hand raised as if he had been intending to knock.

For a while, the air was filled with nothing but their intense gazes.

Phineas reached out his arms and pulled Isabella close. It felt delightful. Without hesitation, she wrapped her arms around him. They both felt that everything was right, now that they were holding each other tight.

Phineas noticed himself relax, and his heart slow down. Isabella buried her face in his shoulder and sighed deeply, with noticeable relief.

"I'm so sorry," Phineas whispered, stroking her hair delicately.

"Me too."

They didn't need to say more; they knew it was sincere.

"I love you so much," he added quietly.

"I love you too." She brushed his cheek with her thumb. "I love you," she repeated, squeezing him tighter.

She pulled back and smiled at him. He returned it; everything was back to normal. She cupped his face, and gazed at him fondly before leaning in.

She pressed her lips against his, as usual sending a thrill through his body. They took their time - even though they hadn't argued for very long, they missed each other.

After breaking the kiss, Isabella took his hand and started heading towards the kitchen.

"What about forgetting about everything and starting this conversation over again?"

Thanks for reading and please review!
ElleFreak is out, peace!