I know I don't understand. I know I probably won't understand and talking to me will be useless if you need someone to relate to because I will not relate.
But I want to help.
I will listen, and if you ask for my advice, I will give it to you. My advice might be useless, but you asked for it, and even if it is:
I still want to help.
We might have been down a similar road of struggle before, and you might worry that it'll scare me away, but trust me:
I still want to help, and you won't scare me way that easily.
Perhaps you don't need someone to talk to about your issues. Perhaps you just need a distraction from what your feeling, someone to take your mind off it. If that is the case:
I can help. Please let me.
Perhaps you need none of these, and I have caught the completely wrong end of the stick. Perhaps there is nothing I can do to help, but trust me:
I am here if you need me or want me. I'm not going anywhere.