a full spectrum of problems

i have a girlfriend whom i thought i loved but as i have started to realise. i am having mixed emotions. yes granted i do care about her but i dont have time for her childish antics.  granted she thinks shes mature but she still has the mentality of a 14 year old. she gets mad when she doesnt get her way and she doesnt realize shes not always gonna get her way. lifes not fair the sooner she realizes that the sooner her life will be alot easier . theres also the problem of there are alot of people who like me and like to hang out with me but do not like her and so everytim somebody wants to hang out with me they ask for me not to bring her. of course i know i shouldnt go and hangout with them i should be with her but she has no friends and al she wants to do is have sex and granted im i guy i think that is great but after a while having sex the same way gets boring. yall may not think so but its she gets off twice or three times i get off we go on with the day 3-4 hours later we do it again she only loves me  because im good in bed i prolly sound like a chick but i dont give a damn. and dhe constantly bitches moans and whines every chance she get about every possible topic no matter what it is . if anybody has any advice or interesting insight please let me know

                                          Q.S