Markus had written all the loopholes that were present in Andrew's proposal. But most important was the last statement.
"Meet me at Gazebo restaurant, Room number 101 at 7 in the evening." - Markus
The last statement made Andrew smile, as this was completely surprising. Markus approaching him on his own, then making amendments in his plan and finally agreeing to his proposal was something he wasn't expecting today.
In fact he had briefly scribbled his original proposal to pass it to Markus today. He was tired of talking and trying to convince him every day.
Thus this was his last trial, where he was going to directly pass the rough plan to Markus and leave the final decision to him.
If Markus was to reject his proposal today, he had decided to not confront him anymore and simply give up.
But miraculously, Markus came to him on his own, and even agreed to the barely presentable plan.
