Ignore the phone.

You decline the call. You don't want to talk to her in your condition, and you're too tired. You haven't eaten! There's some food left in the house. You could also go out and eat. Down the street, there's a nice place called the Unicorn's Dream that has decent food. You've been there many times, especially given how close it is to where you live.

Sometimes, your friends are there too. It's a good time. Usually.

Tapping your phone against your hip, you think. Then your stomach growls. All right, no more thinking. It's time to make a decision. If you stay inside too long, the witch is going to punish you. At least, that's what she said, but you're inclined to believe her.