[Felix offers a smile in return - somewhat forced but also somewhat bashful at the same time. The Doctor's use of the word atonement wasn't all that far wrong. Felix himself wasn't sure if that's what it was. As if anything he did here could actually make up for anything he'd done back home at all.]

I suppose I do sometimes mistake the difference between persistence and being obnoxious. Though I wish my motives were as entirely as altruistic as you seem to be thinking.