Alessa had to leave, knowing it would be the wrong time and place to push the matter through.
The answer was obvious. He didn't want any change in their current relationship. Despite it looking so business-like and not even so much that of what was between friends, he showed no desire to improve it.
There might be reasons behind it. One angle she saw was the death of a childhood friend from three years ago. However, it was quite at the bottom of the list because half a month ago, when she tried to bring that name up, he didn't really show any signs of agitation.
So what could it be? Actually, he seemed reluctant to form any close-knit relationship with anyone. He was estranging himself even from his own family. When they were still at Jasper, after earning his first paycheck he immediately moved out of his parent's house and even lessened his time with them. Why?