Fiction Writing Assignment 2: Characters in a short story

Teachers without Borders 2
{For background read part 1 under Beginnings}

Sheena stared at the big old clock on the grey side-wall of the room; it was about 10:05 am, still no sign of Tim. Right then, Tim walked in to the meeting room with a bowl of cheerios in one hand and his worn-out journal in the other. He had his cozy smile, ragged blue jeans and a starched white shirt on. To Sheena, it appeared that he had come in high air, standing tall at 6 feet with all his convictions in tow. Sheena loved his confidence but hated such situations all at once. For a wicked second, she wondered if today she would be the winner.
“Morning, sorry I’m late” said Tim earnestly.
Sheena jumped back “Hey! I guess I should bring along a test or something to read while I wait for you”.
Tim responded with a stretched instantaneous smile on his lips: “May be you should; you say it every time. Do you forget or were you running late too? In fact, after your class finished at 9:50, if you went to the teachers lounge to pick up a few tests you would bump in to me pouring cereal in the break room and we could walk to this very room together starting this meeting en-route!”

Sheena wanted to shake the shit out of Tim for his nonchalance but he was right. Why did she let him get to her? It drove Sheena nuts that he was witty and smart; it felt like she lost her whiz status when she was with him.
By now, Tim was amused and making a funny face -“Hello Ms Day Dreamer ! Should we begin? We’ve already lost 10 minutes. So where were we on Tuesday?”
Before Sheena could respond, Tim answered his own question “Ah, found my notes! We finalized the budget and the committee members on the annual project. Today we should focus on a cause - possibly social and then talk to student volunteers who might be interested. Once we have a good project plan we can pitch it to Sister Rosa.”
Tim eyed Sheena to scan her reactions. She was in one of her dark days – black cotton shirt, jet black slacks and black leather boots. The only thing non-nerve wracking or even delightful in her appearance was the way her petite black earrings made her small face stand out amidst waves of short, cropped hair. Had he not seen Sheena in her colorful, cool and casual clothes over the last 6 months, Tim would have thought she belonged to some gothic band or cult.

“Look Tim - I totally respect and appreciate your passion for this project and yes WE need to decide on a cause. But what makes you think it has to be one of social significance? I would much rather lobby for an annual project within the school that helps our students and strengthens Mt Mary High School’s community – that could be the social impact you so desire in everything. You know charity begins at home!” Sheena blurted out.
Her style did not appeal to Tim - she was aggressive, rational but over-the-to-top dramatic. He decided to ignore the Hollywood style effects and focus on her message and think of an appropriate response. At this very moment, Sheena was biting her tongue and fuming internally. Once again, she had let her emotions dominate her calm, collected professional self, which she had developed after years of critical self-analysis and practice.

Alternate link: http://fictionwritingclass.blogspot.com/2007/07/character.html