for anyone that think Aria's cruel not to let Veri go, here's my piece of mind.
On previous lives, she deceived Aria under Emma and Mielle's order that led to Aria's mother killed, Aria's being framed to poison Mielle and that is by using Veri. And so, she's not a saint that will act all good for those try to harm her
So yeah, when Aria choose to dispose Veri, I think she deserved it