[An arm goes around Martin's shoulders, just enough to be a comforting weight without being restrictive.]

Oi, don't you dare apologize to him, you've nothing to apologize for when he's the one acting up. Doesn't bloody matter how scared he is. [Because sure, Jon's traumatized and scared and paranoid, but Martin has been through the same shit Jon has, and regardless, that's still no excuse to have withheld the truth like this.] He hurt you, yeah? How will he learn not to do it again if you don't hold your ground?