i have broken up with her for 3 monthes,i still miss her,what i should do?

hi~~i'm 24 years old guy,i have been with my gf for 3 years since 2006, we both are in first love, i loved her and she loved me too,but unfortunately,her mother objected us to fall in love from the beginning,she dislike me,and she thought her daughter should find a better guy, but we still love each other very much,we continued to keep our relationship, her mohter is not happy all the time,but she's never stop trying to convince her mother to accept me, however her mohter is so tough~~but we still have spent 3 years happy time. i can feel our love to me become stronger and stronger gradually in the 3 years, i really felt happy with her.once i really think that we can get married and be together in the rest of our lives,however,she wants her mother to accept me,if not,she will not be happy with me,she wanna get bless from her mother,because her father was died a few years ago,and she only has her mohter,so she is obedient to her mother,she cannot give up her mother although she aslo loves me very much.i know what big pressure she bears, i cant remember how many times she cried for this in the 3 years.but we often had quarrels about some trivia since last year,we both tired of quarrels.but we both cannot control our temper.and a guy broke into her life,he always stay with her after each quarrel we had,he comforts her,and talk to her,make her happy,i am unhappy about that,but she told that she and him was just friends,i believe her,i trust every word she told me,and i never suspect their relationship.however one day after another quarrel we had,she told me that she wanna be with him,becuase her mother like that guy and she feels easy without her mother's pressure,and she's tired of being with me without her mohter's permission,she's so serious at that time,and i cant believe that she can really give me up,i hope all about that is false,but i was disappointed,she determined to leave me,i know this is not a joke,and i can understand the pressure she bears,but i just cant accpet the fact, i was so sad,i cannot believe this is true,i beg her,this is my first time to ask someone for beg,i beg her to come back to my side,but it doesnt work,at last,we have departed away anyway, now it has been 3 monthes since we departed,we have never get in touch and met since then although we are in the same campus,and i know she's started with that guy,and i dont want to see her any more.however, i still miss her now, i'm living in dorm by my self, every night when i get on the bed, close my eyes,i will think of her,i will think what is she doing now? what she is thinking now, maybe she is lying by that guy's side,i cant imagine that,but i cant help myself to think of it. i always have dreams that she's come back and beg for my forgive, i know she's not coming back and i have to start my new life,i aslo know i will find another gf and get married in the future, but i just cant forget her,sometimes i think maybe i will not forget her,her face,her voice, and the 3 years' time and every scene with her in the rest of my life, maybe many years later,i will put the memory about her in my deep heart, maybe when i get married i will tell my wife once there such a girl i have deeply loved...
this is my story,hehe,am i a fool?am i a loser? anybody have the same feeling? does anyone can tell me...thanks

Go find something else to do in your life. You're not properly redirecting your emotional energy away from thoughts of her.

there's so much more to life than moping over love and relationships which don't work. time is precious. don't waste time by brooding on things which don't work. MOVE ON

of course other people feel that way. just read the titles of the other posts. i would say about 20% of the posts in here are about people who can't stop thinking about someone. even someone who they know 'is not the one'.

you will be amazed how quickly you will forget her once you are in a 'normal' relationship. that relationship was not normal. do you really want someone who lets their mother control their life?

thanks for your advices so much,yes,i have a lot of things to do,such as work,entertainment and so on...and of course i can handle the emotion very well when i was in work, i just mean that when i get free in my mind,i will think of her and the past memory automatically and i feel a little sad, some friends told me that the best way to forget someone is to find another gf instead,but i dont think this way does work for guy,maybe it work for girls,i always think that if a guy really fall in love in someone,it's definitely not so easy to forget her/him,it takes time,maybe a very long time...