<human>: Reddit, I am currently in a predicament.  A girl in my major (and every class with me until I graduate) has taken quite an interest in me since last spring semester.  She wont leave me alone.  The problem is, she is a really nice girl, but I'm not interested in her at all.  We have many mutual friends so it's not like I can just disappear entirely.  I am constantly bombarded via texts, facebook messages, invites to do this, invites to do that, and I have finally decided enough is enough. I am worried she is going to do something stupid, like confess her love for me. Its already getting worse. For our one class, I had told her I wasn't going to buy the book because it was around 180 dollars and the class was only 2 credits.  Later that week we meet up to study and she says she accidentally bought two books and that I could have the second. How do I let her know I have no romantic interest in her without actually saying anything of the like.

Give me the gist of the text in a nutshell
<bot>: how does a nice guy subtly friend-zone an overly friendly, romantically interested girl he will have to see everyday for the next year?