Jon almost touches Martin's cheek, wanting that eye contact back, but stops himself.

Now that's not entirely fair, he'd have wound up on that gallows whether he told Martin or not.

"I- Martin, I know. But I didn't think there was anything you could have done, or anyone could have done." He touches his neck without realizing, and twitches his hand away from it. "Other people knew. I wasn't... I wasn't keeping it a secret."