I want to say sorry to my girlfriend

Honey ~~I am very sorry to you that what I have did to you .Everytime when I quarrel with you I will feel very bad to myself . About ,why I cannot just think for you , just love you more then quarrel with you ????why ????Tell me why ????why why why ????I very hate myself . I still can remember one time that I quarrel with you beside the road , and I say I very suffer to beeing do this and that and if you still continue like this , do you want to break uo with me , I ask like this . I also dun know why that moment I will ask this question to hurt you . Until now I also cannot forgot the moment ?Feel very bad ,very sad . I am very very very de sorry to you . Everytime we quarrel you also will tolerate me .Dun know why ???Lao po we have been quarrel so many times already , and everytime also you tolerate me , I feel very sorry to you .All I can say is just , Lao po:I am very sorry about what I have did to you , I promise I will not quarrel or scold you anymore . All I will do is just talk nicely to you ,let you more understand me ok.