REPOST My gurlfrend come over last night?

and she got a attitude cause i was with another gurl. now shes mad at me. how do i make her unnerstand that i was right cause i didnt wanna be alone and she said she wasnt gonna come by? she teling me that i cheated on her but shes a liar cause she said she was gong to stay at home and then she come over anyway. how do i make her unnerstand that she a liar and all i done was have a gurl over and if she would have not ben a liar then she could of come over tonight and the gurl i was with last night would have ben gone and everything would have ben cool. she keeps calling me and telling me im a cheater and gets mad when i tell her she lied about coming over. how can i talk sence into her and make her unnerstand that i aint done nothing wrong and even if i could be considered wrong she still lied? and please answer quick cause if i cant straiten things out with my lying gurlfrend then i need to make plans for some other gurl to come over. and i wanna make the point that i aint never told her i wasnt gonna have another gurl over and she said she was gona stay home AND WASNT COMIN OVER. so how i make her unnerstand that shes i liar cause i aint the one who lied. and shud i just go ahead and set up another gurl for tonite in case i cant talk no sence into my gurlfrend? cause if i dont i can still get another gurl over but it will be easier if i dont wate untill the last minite. so how do i make her unnerstand that she lied and i dint?