"Your girlfriend/boyfriend is your every desire and is up for anything you suggest
There's a 1/3 of a chance that she will do that also with someone else while in the relationship."
Eh, I've always believed that who you sleep with is your own business, including any girlfriends I might have, so no problem.
"Become a God, Invinicible and Indestructable, and your word is law to all.
Your family and everyone you love is exiled to eternal nothingness, except one person of your choosing."
Considering I hate my family and I don't love anybody I don't see the downside.