This is weird. My friend's future wife just invited me over facebook to go out with her tomorrow and have a couple of drinks. I've seen her only 1-2 times before. She said her boyfriend will be out of town and she doesn't want to spend evening home alone. I knew this world is fucked up but what the fuck. What should I do in this surreally fucked up situation?

P.S. I think her boyfriend doesn't even know about this

UPDATE: I told her I have other plans, I don't want drama in my life.