When Harry confided in her about his decision to leave, she became a crying shoulder for him to lean on.
In his memoir 'Spare', Prince Harry writes about the time when the Palace took back his deployment to Iraq due to security reasons, and how it tore him apart.
He turned to Chelsy for support and discussed quitting the army altogether, as he felt that there was no point in staying if he couldn't serve as a soldier.
Chelsy was torn between feeling relieved that Harry wouldn't be in harm's way, and knowing how much he wanted to be there for his team. She understood that the army was the one healthy outlet that Harry had found and that he believed in the mission.
Overall, Chelsy provided a sympathetic ear for Prince Harry during this difficult time, and he appreciated her support.