Saying all that sounds like a good start. Possibly tying him to a chair to ensure he doesn't runaway also might help.

[She doesn't really know what Alec meant by being sacrificed to an 'Angel,' but apocalypse, that she does understand. It's what would happen if the First Order ruled the galaxy. Chaos, and more bloodshed.]

I'll be there soon.

[Rey received the address and was heading over there. It takes her a bit longer than she wanted, because of her headache, the pounding feeling behind her eyes, but she manages to find the building and shots Alec a text that she's there.]