I saw my shower missing a shower curtain

So my suitemate moved out last week. No big deal. She came back and took not just the damn shower curtain she bought but the one I bought and the freaking shower rings. I was pissed. I sent her a little message on facebook. She betta give them back. I'm not petty but damn, she it pretty bitchy thing to do cause now my roommate and other suitemate can't shower till we get those back or we buy new ones. But since we don't have alot of money she needs to turn them back in.