I know this may not be of much help to you, but i found this on and thought it very useful in explaining SI to my boyfriendI love you, I hate you, I miss you.

I’ve missed you these past 10 weeks, more than anyone could ever imagine. I’m sure you know how much I missed you though, because you know how much I’ve relied on you. I’ve put myself in your loving hands, in your fierce grip, for over a year. Breaking free has been the hardest thing I’ve done in a long time.

When the time was right, it was…disgustingly perfect. It’s wrong to describe you in that way, because you’re far from perfect. You are disgusting, and destructive, and deceiving. You’ve ripped me apart – in more ways than one – and trod on me, and played with me until I was that messy putty in your hands. You manipulated me into thinking you were the best thing that had ever happened to me; and that you loved me and had my best intentions at heart. But you didn’t. You never did and you never will.

I still loved you though, and I think I always will. You’ll always hold a part of me, because when I pried myself from your grasp,, you didn’t let me go completely you kept hold of a part of me, and that part of me will always be with you, just like a part of you will always reside with me. You'll never fully leave me, will you? You’ll always be there, creeping in the back of my mind. Showing yourself through your presents left on my body. I hop I don’t always miss you, because missing you is making me empty inside.

Ou’re what I think about all the time. I sit with friends, talking, and I think about you. I sit and eat with my family, and I think about you. I think about inviting you back into my life again, and how it’d change everything. And even though I know it’s wrong, I want you back so bad. I can’t get you out of my mind. I shudder when i think of touching the cool metal against my skin. It’s so beautiful to me. The ugliness of it all is hidden beneath this layer of love and want and need.

Part of me knows that giving you up was for the best. Part of me realises that you’ve ruined my life. Part of me realises that things won’t ever be the same oce you’ve been here. You’ve spun through my life, leaving a path of ruins behind you. You encaptured me in your spell, and clasped your hands around my life and squeezed so hard I thought I’d die. You wreaked havoc, and made me hate more than I ever hated before. But I’ve turned the tables on you, and it’s you I hate now.

I hate your sick reminders on my arm. I hate the way you love making people miserable. I hate the way you are fake and make people believe you are helping hem. I hate the way you control lives.

And worst of all, I hate the way I love you.
...he had a fairly ok understanding of it but i just thought it was a really good description, so you could maybe show this to your friend...i don't know.