A strong motivating factor, yes.

[She understands; it's hard to ask, but not so hard to talk to him.]

I truly hope so. [And then his wish. . .she doesn't really see anything wrong with wanting to kill some guy who murdered his mom. But.] It's dreadful to have to admit to something so sentimental. I hope if it would make you happy, you will kill him. But if it costs you the other people in your life, I'm skeptical that it will.