As Azzy spends more time with Claire and lets his feelings grow more and more, a fear developed in his heart.
He knew that he had to leave her eventually and return to the original timeline. By then, 27 years will be passed. Will Claire still love him then?
There are various things that troubled him. First of all, according to the rules of time travel, her memories of them will disappear. So, she wouldn't even recognize him much less love him back.
Second, even if a miracle happens and she remembers him, 27 years isn't a small period of time. There's a high possibility that Claire might lose her feelings gradually over time and fall for someone else.
