You love a girl but she do not love you How can i make her love me?

Its been one and half year i m in love with her.. when i met her she was in love with someone else but she never told me, so after 2 months i got in love with her i told her dat i lov her but she said no to me, she said she is in love with somone else... i said ohk.. After that she is always with me in university, talkin with me on phone all night... doing all the she wants to.. but when ever i say her dat do u love she says no... she always says i take u as my good frend... we have loads of fight but we always patch up... she even says me dat she was just being with me to forget her ex-boyfrend... even i said her dat i want to marry you.. but she says no i dunt want to marry you... coz i dunt love... before she was always wiv me but knw she talks to when she wants to.. she always bring marriage topic in between our conversation... i want to knw do she love me? if she do then why she don't tell me? she has 1000 reasons t say no to me, all of her reasons r simply unpractical and stupid one,s!!! For example one day she said me you are always free to send ur parents on my house !!! next day she says no i dunt want to marry you... How can i marry you... what will my frends says..!!! I m 21 year old working as a proeffisonal fashion designer !!! i lives in Pakistan... Her frends are against me !!! she is totally changed!!!

You cant make anyone love you. If it was ment to happen it will, it will all fall together but if it wasnt then try to move on.