Problem girls pls help.?

I am a male and 29 years old working as software trainer.

Things happening in my life make me go crazy.I am almost alone like an orphan .cos i dont have good relationship with my parents and also not dependent on friends emotionally.my relationships are always troubled as I expect the people to behave the same way as I do with them.I am not talking about strangers here.only about people whom i consider can be of value in my life (friends, girl friends etc.). My only emotional support is a married girl who calls me once in while and we meet occassionaly and share our woes and happiness and kisses too.I do have many girls as friends but its like I always give more than what i get from them.in nutshell My personal life totally sucks. good advice pls.