Asra knew that sharing a heart would cause some kind of complications later down the line.

It makes hiding things a lot harder. Not that Asra was a liar. No, of course he wasn't. But the amnesia meant that he had to hury his feelings down. If he knew what was best for the both of them, that is.

Asra feels what is felt. Whatever Asra feels is felt back. That's why, when out on a trip, his blood runs cold.

A pain in his chest. Something is wrong. He has to go find out what's wrong.