Designer Handkerchiefs

I'm in year 9, and we're supposed to write a short story entitled "The Argument ', involving two characters. We must show each side of the argument. However, I really need to brush up my writing skills, and would like some help so I can improve my story.
Any criticism is welcome.
Thank you! (Oh, and it is not finished yet ...)

(Roan)
"Please, think" I begged.
"It would be over before you know it. And no more pain, more suffering. It would not hurt as well ... Please let me!"
Lebanon went around the room constantly juggle with the hem of her navy blue skirt.
"Please, Lebanon, I can not live this way any more!" Suddenly she froze in front of me, her large eyes framed designer to enter the mine. She opened her mouth as if to speak, blinked a few times, then closed his mouth and began stimulation. I sighed, exasperated, in search of my mind something to say.
"You really think it's the right thing to do then? Lebanon soft voice lost in the silence of iron. His voice was cold and without emotion. She was not even looking at me.

(LEBANON)
I looked on the floor without understanding. I knew that Roan was watching me, but I do not aspire to make eye contact, I was so angry I thought I could hit it if I did.
I had this horrible feeling in my stomach, as the weight of a mini-van bearing down on my belly and make me feel sick. I know what she wants to tell me, but I can not force me to speak, the words that feel so sad and bitter on my tongue.
"Yes" answer Roan me back from my reverie. "I really do." She seemed sincere. My head started spinning and the ground twisted and bucked like a stallion outraged at my feet in sandals.

(Roan)
I looked carefully Lebanon. She had a puzzled expression on his face. I clenched my clammy hands by my side and waited for her to return to reality, to swallow with apprehension.
"Have you ever thought about all the people in the world who loves you?" Lebanon finally looked at me, but his eyes were bright with tears, and this time it was my turn to look away.
"Uh ... Well ... Yeah, I think, but I mumbled, my eyes begin to shine.
"You guess?!" Seriously?! Thinking of taking this life-changing decision and you do not even think of the impact it would have on others? " Lebanon fumend vehemently. The first tears rolled down my cheeks with ivory. I did not bother to wipe them away.

(LEBANON)
"Have you any idea how this would cause trouble?" I softened my tone considerably, not wanting to upset her more was needed then. Her large blue eyes were already brimming with tears. I produced a cotton handkerchief My pocket and went to hand it to her. She sniffed and made me smile a wobbly to show his gratitude. I put an arm around her shoulders and gently guided her to sit on a stump in the middle of the clearing. Seizure icy signifies the beginning of winter had crept its way, and Roan shivered as she leaned into me and put her head on my shoulder.
We stayed like that for centuries, holding my hand and looked about her, her sobs and silence in my shoulder.

(Roan)
Lebanon has always been a great source of comfort for me when I needed it, and now is no exception. Although she disagreed with everything I said, it continues to rock me slowly and held my hand. I took a deep breath, and the sobs that ravaged my body, I managed to choke out my answer.
"I know. I can not make any-more ... I am unhappy Lebanon! "
She gently squeezed my hand.

(LEBANON)
Shake Hands smoothly. Po