Emotionally painful. Hm. If the sensation was anything like heartburn, it could be unpleasant indeed and he could see why Dom would wish to prevent it.
How could one compare sensations and declare them equal or at least similar, if they were experienced by different individuals altogether. What if Dom's emotional heartburn was the equivalent of Al's mental itch, or something else. Or nothing at all?
Al considered the situation, and, in fact, he didn't have to dig as far as childhood, only as far as this Christmas as he watched Jamie and Dad opening presents. Was 'jealousy' the word for the unpleasant twitch of something deep and buried at watching Jamie receive the invisibility cloak? But jealousy usually applied to people, and people weren't cloaks. They weren't presented and worn like Christmas gifts.
"I can somewhat guess," Al nodded. "And I think I can isolate the sensation, but I cannot logically prove that it is without a doubt the same sensation you are trying to avoid." He bit his lip. "Even if I allow for a reasonable margin of error, considering the differences in our cognition."