Though I have heard quite a few of them, I find these as the most hilarious and awkward reasons for a break up:
The bad call: It was when a guy belonging to a well-off family made just a silly mistake during his date and regretted it later. Both were having a sumptuous lunch together until the guy whistled to call the waiter. The girl never approached him again!
Low maintenance:It becomes essential to maintain a good level of hygiene, especially, when you are at a public place. A couple was walking hand-in-hand, and soon the guy noticed her nails peeping out of her ballerina. Her nails were so sharp and long that they were scratching on the ground. And, the guy regretted walking next to her. That was their first and the last meet.
Baby steps, not accepted: They both had lunch that day and walked out of the restaurant soon. It was just 5 minutes after a good walk the guy suddenly realized that his girlfriend is no more near him. He turned around and saw her walking 20 meters behind him somehow managing to walk in those high heels. Why do girls wear such heels if they are uncomfortable in walking?
That embarrassing fart: Farting is natural but not when you are on a date. They both met three days ago and planned for a quick date. They met at a nearby restaurant. The guy seemed quite uncomfortable, his face turned as red as an apple. Soon a deep silence hit as he farted. Well, after this major embarrassment, the girlfriend somehow managed to sit with him merely for an hour but never contacted him afterward.