How to put up with someone you tend to find annoying?

I'm kind of friends with this girl from my math cl who's allright, but she has one downside. She has pretty bad ADHD, so at times she can annoy the piss out of me. So, it's spring break, all of my close friends are on vacation, and I figure I'll give this girl (Sammy) a chance. How can I put up with Her if she starts to get annoying, without blowing up in her face? (I'm not a patient person...) thanks!