I'm a 26 year old guy who hasn't had a relationship in the last 6 year's. My last relationship was when I attended college with a girl who was a year younger me (we started dating since high school).
We were living together for quite some time, suddenly my dad was ill and his debts were becoming impossible to pay back. I decided to drop out of college to take his place in his business (he owned a small supermarket that was very popular between the local's), but my then current girlfriend broke up with me saying that she couldn't stand weak men, and gave 10 day's to move out of the house so that her friend (a guy friend who turned out to be her lover) may move in.
I felt like thrash and couldn't face her on the streets.
I did what I could and save my dad business (paid every debt and made some profit), when he retired I sold the store and started working in a small logistic company which I hold a small precentage.
Since that time I never went on a date, I closed myself and didn't want to met anyone. My friends were always pressuring me to try again (they are all married), but when I start talking to women I always fell angry because and start to treating them badly, it would get worse if they started giving me lectures on how to be (one even said that to me that I guy should give her his best, when she's at her wrost), but I always that it wouldn't work anyways.
Should I give up and continue my life alone or should I try again?

P.S- I'm not a unhappy person, but also i'm not happy I only fell normal and what keep's me going is to try making money everyday. I saw her in recent day's and told me that I looked great (even do I am overweight) and hear that I was making quite some fortune, she asked me to forgive her, I said no without giving her a lesson but she's said I turned out to be a horrible person, without any kindness. I said that I didn't care.