I m smashed help me out guys.. what should i do ?

me 23.my grlfrnd s 6 yr juniour dn me. whn our relesn ws start, i very much pemper hr.I do every thing what she want. nw she take advantage of it.she damn care my feelings.once we talk 16-18 hr n a day. now i call her more dn 100 time na day but she didn't take my call she shows me her dont care attitude for mine.she always says dont call me but when she call me she talk about anothar boys.. i stop smoke nd drink also i refuse 3 girl fr her coz i jast want her. how can she care for me nd my feelings ??