Cant get over my EX BOYFRIEND !? advice, help anything appreciated!!?

[ANGELxx]

my ex has a problem with drugs not that this should be any excuse but im staying it anyway. he abuses cocaine and alcohol and also marijuana. he has been lyingto me saying he has been staying with his grandfather getting sober meanwhile i go on his fb and hes messaging girls telling them to come over cause he has a free crib. this is not only the first time hes hurt me, a while back he asked for money telling me someone was gonna kill him if he didnt get this money so like a good girlfriend, i gave it to him and i never saw it ever again. he promised to pay me back, he says he loves me but his love for drugs alcohol is much more stronger.. i gave him everything and now i still feel hurt and lost, i just dont want to think about him but i do. i want to be able to be okay