Originally I thought about Four being pestered and antagonized by some anonymous jerk - maybe Harrison, maybe Amar, someone that would put him on edge about being physically close to Tris. But it didn't ever seem to work as a plot device, so I chucked it. But here's a little surviving piece.

Another note was under his door. His legs quaked when he knelt to pick it up the strain of his training had him aching. This would make six, one for each day she's come to train.

'Do you think you can will the unwilling to pass?'

He set it on the pile on the table. Each card carried a message that played on every doubt he had. That he would snap. That she'd fail. That she would lie and be found out. That she would quit. The first one was the worst, so awful he'd read it every day.

'Kissing traitors on tailgates doesn't make you brave.'

The second pressed the point and gave him pause.

'You don't look at other friends like that…'

The third prompted a panic, followed by a resolution to keep the wall between them: instructor and initiate.

'An awful lot of touch for a stiff…'

He had his suspicions. That it was Harrison reminding him that he was under surveillance or Amar trying to scare him into rethinking.

But a quick look through the cameras at the gate, the ones on his hallway, and the logs on the access screens made him doubt. He'd gone so far as to trudged through three days of survailance tape, following Harrison frame by frame without even a hint that he was remotely interested in Tris or him or doing anything other than looking bored and drawn dealing with the daily operations of the faction.

He quickly dismissed Amar as a suspect, he was just as involved in planning her training routine as he was, with even more thoughtfulness and consideration for her injuries.

When he showed the first four to Amar, he watched carefully as he flipped one over the other, reading them each twice. Amar grimaced when he got to the first one,

"So, you've got a stalker. I wouldn't call it a fan."

"What do I do about it?"

"You toe the line, don't give them anything else. If they are watching you this closely, don't fool around." Four let out a heavy sigh, "I told you, you have to be careful with this girl, she's like a drug for you. Any how, she's not doing bad so far, she might even pass drills. Just waiting for her to be cleared for serums, then I'll know more about that."

"What do you mean?" Four had assumed she'd already started sims, that she just didn't mention it since he started distancing himself.

"Oh, it's a chemistry thing. Something with her medications. Janice is sorting it out." Amar shrugged dismissively.

"Medications?"

Amar shrugged, "So, you think this is Harrison?"

"I've already checked days of tape, it doesn't look like he's had any time to snoop, no visitors with photos, no conversations where he looks even interested. If he's involved, he's not doing the dirty work."

"You think you're pushing her a little hard?"

"She can take it."

"She can, but things are different than when you were her instructor, she might be expecting —.

"A free pass? No favoritism."

"She might be expecting you to be a little nicer." Amar clarified.

"She needs structure, discipline to get through this part. She doesn't need me to pander to her."

"I mean, it's not like I know women all that well, but I do know a thing or two about relationships. You might want to think about throwing in a compliment every now and then."

Four arched his eyebrow, and rolled his eyes and lied. "I complement her."

"Okay, good. Just checking." Amar smiled, scooping up his folders and Tris' training plan before stepping out.