[quote=@Ponn]
I don't know whether to take that as an insult or a compliment...
[/quote]

It's the truth!

I'll admit I have a hard time parsing Roma's character sheet to find out exactly what their deal is, but Olivia is pretty content to just be with her man. She also seems to be a touch, well, "eccentric," and I don't think Roma could really offer her anything Xolys isn't already giving her. Which leaves the "take by force" option, which isn't too favorable. It's been a bit since I read her sheet, but I don't think it's clearly stated if Xolys would stop fighting if Olivia was incapacitated. Since killing Olivia goes against the goal of enslaving her mind, There are no ideal ways to put Olivia under anyone's control short of some very potent mind control magic, which I don't think Roma has access to. My 2 cents.

"The best way to take out this stand user is not to focus on the stand, but the user themselves!"