It is so hard to face SI when you r not one who engages. I have been with my husband for 8 years, married for 4, he only just recently has seen the extent of my SI. I had him read about it and learn why I do it. He is understanding yet at the same time sad for me. We try to work on other coping skills but nothing, to me, beat SI. My hubby is wonderful and it is sad to be intimate with him and try my hardest to hide my cuts but I know he loves me no mater what and he sees my cuts as "I need to be there for her more" he is trying his hardest to get me to stop but 8 years in and Im still doing it, he has accepted it and is willing to not say anything about it or to be there for me in my times of needing to SI. Your bf shou8ld read up on it, become interested in it and try to understand your triggers and help u to find other ways to cope. I know, easier said then done, but knowing the one u love is there and understanding, not passing judgement can keep u from SI, not all the time but sometimes and that is a lot, it is a huge step and he needs to learn about it, get into your soul and become u to understand what is going through your mind when u do SI. If he can do that then he can understand and be there and not be judgemental and then hopefully he can deal with the fact his gf SI and he can help u work on not doing it aqnymore or at least decreasing it. Many many hugs to you.... hang in there and the very very best of luck to you.