I don't really think this is about boning a teacher. I think the 'cruel professor' thing is just meant to call her cruel ('professor of love', I don't think it means actual romances). It's about a guy who has recently broken up with a girl and is now avoiding her but keeps running into her and is really still in love with her. He sees her walking on campus, accidentally spills kefir on her keffiyeh and when he sees her sitting around on the grass, he avoids her and just sleeps (after class is meant to say that he could be doing better things because he's done with class for the day). Also, she's been giving him the cold shoulder (shoulder's cold).
I don't really think this is about boning a teacher. I think the 'cruel professor' thing is just meant to call her cruel ('professor of love', I don't think it means actual romances). It's about a guy who has recently broken up with a girl and is now avoiding her but keeps running into her and is really still in love with her. He sees her walking on campus, accidentally spills kefir on her keffiyeh and when he sees her sitting around on the grass, he avoids her and just sleeps (after class is meant to say that he could be doing better things because he's done with class for the day). Also, she's been giving him the cold shoulder (shoulder's cold).
That's my take on it.