I have a friend who had Bell's Palsy. Don't be so hard on yourself. To be honest, she looked pretty cute with the facial spasms... & she didn't really care what other people thought while she recovered. I really doubt you're ugly, even with a crooked mouth. Stop worrying and go out when you want to. <3
Sorry to read about this it is temporary so I wouldn't worry about it. A guy I use to work with had this it lasted maybe 4-6 weeks. Another thing you have to remember is that there are alot of people so into themselves they most likely will not even notice.