You haven't called, even though I bolted today. Do I have so little effect on you that you don't care/aren't curious about why I ran? If I just disappeared and never showed up again, you wouldn't contact me. You wouldn't even care.

I can't talk to you about the sexual abuse. You can't handle it. (You never, never ask me about it even when I hint that I want to talk about it.)
I can't talk to you about being angry at you for not getting it.
I can't talk to you about class and how our class difference is making me uncomfortable.
I can't talk to you when I feel suicidal or like hurting myself. When I try to talk to you about these things, you don't seem to understand how hard it is for me to talk to you about them (and you definitely don't know how often I think about it but don't tell you.) You don't seem interested. (I think you are annoyed with me for feeling this way or you don't take me seriously.)

Something about me is clearly not important enough for you to be invested in me. Whatever, I have that effect on everyone.