Worst reason? Hah. So let's see, first there's the one I was living with when i was younger that said I was "too lazy" whilst juggling three jobs, two dogs, college, and a car, but in reality was (more than likely) cheating on me with her older guy friend (who was/is a drug dealer on the downlow), forcing me to move out and basically started a chain of events that cost me literally everything I had, forcing me to relocate to another state and more or less ruining my life for four years. The other one came years later. She used to be my best friend, then hooked up with me, used me for more than $3000, then dumped me because I refused to be her sole means of support for her and her family while she spent all her money on herself, refused to acknowledge my contribution, then had the gall to actively abuse me both verbally and physically. You pick, I honestly can't decide...