How to explain?
You trigger in me some kind of caring instinct that I can't shake. I see you hurting, absolutely lonely and I hope you know that it keeps me up at night. It's like you're inside a dark hole and everyone around you - especially me - is constantly trying to pull you out but the more we try, deeper you seem to go.
I also wanted you to know that I will keep trying with you, I will. But not now, I'm afraid. Now I have my own hole to crawl out of and I need to take care of myself before I can worry about anyone else. But please wait, because I'm sure one day we'll both be full of light again and I, for once, will be really happy to share it.