Lena had been traveling throughout different timelines of time. She had absolutely no idea that with the continuation of this pace of travelling, her health would soon crumble. She started to lose the track of time in the beginning. It was james, her husband, who realized that this continuation is turning lethal for her. It took a lot of convincing from James to finally stop Lena from time traveling. James told her that he would continue her mission.
Ps. The picture is my own.
