I think the trouble is the time he's been here, [he says after a moment.] He's jumped on every opportunity he could, and that--things developed. Obviously. And I'm quite certain he's afraid of hurting you further.

[That doesn't necessarily excuse some of the things Vax has done - or hasn't done - and Percy doubts it will make Keyleth feel any better. But... Percy at least somewhat understands the circumstances.]