[It's less the being left behind: he did volunteer to go, and it seemed a noble sacrifice at the time, but with the necessity of it utterly dissolved with Rodimus' confession and the vote, the fact that Rodimus hasn't made an effort to make it right...that stings.]

You'd think it'd be easier than confessing in the first place. [He's trying not to be bitter, really he is. Time to look on the bright side.] At least I know who really cares now. Enough to risk life, limb and pride anyway.