Be the girl that he regrets lying to. Make sure he knows youre happy without him and that its just another day that's gone by that you don't think of his dumb ass even if you do. Make it seem like he's the last thing on your mind even if he's the first. Don't look at him how you used to. Don't think about all the good times that you had. If he wanted to be with you he wouldnt have done what he did he wouldnt have changed like he said he would never do. If he loved you he wouldnt have broken you down like he did and left you there to keep loving him like you do. Move on. Because sooner or later hell be crawling back wanting you and regretting that he ever left in the first place and then you can be the one breaking hearts <3 Remember that everything happens for a reason.