The context of the following conversation is Kendall didn't have a phone number to give to the cute guy. Kendall used Alex's number instead.:
Kendall says I hope it's okay that I gave some cute guy I'm interested in your number..
The friend responds Why didn't you give him your number?.
Kendall responds I broke my phone the other day and didn't have a number to give him..
The friend responds So what should I do if he calls my phone?.
Kendall responds Just act like you're me and set up the date..
The friend responds How cute was he?.