I'm worried that i'll be left jobless now! please help?

I called my manager at P.S. Aeropostale and let her know that I'm applying for other jobs at the mall. But since I work for the Aeropostale company I'm not allowed to work at any other retail store. I gaveher notice and told her that she may be getting calls from American Eagle, Pac Sun, Delia's and Lady's Foot Locker asking for referrals. She got mad and hung up the phone on me since I would have t quit if I got hired at another retail store. Could she fire me for trying to get another job?