she might not necessarily leave you. She might actually want to help you stop and support you while trying to stop. I'm speaking for my experience here but i have an ex/best friend that used to cut himself and he some how managed to hid it from me for months, but when I did find out I asked him to stop. He said he couldn't but I told him I'd help him through it all and support him all the way because I used to cut, myself. I know how hard it is to quit and you can't do it all at once or without support... I would also check him every day to make sure he hadn't cut after I found out. If there was a fresh cut and depending on how many of them there were, he'd get a different type of "punishment" that meant as me being mad/not talking to him/ kicking his @SS as i am a pretty tough girl... If you ever need to talk just PM me any time. I'm Ashley by the way