That's happened to me - this girl Stewart and I both know was texting him all the time, and acting all huggy and clingy every time she saw him. He's 21 and I'm 20 - she's 16. It irked me at first, because he didn't realise how she was acting, he thought she was "friendly". I'm cool now because he realised exactly how bad she was getting, and now we just kinda giggle about it.