Whats happened to us?

Whats happend to us??
We've been friends since i can remember
I'm not trying to sound like a child
but I feel like we're drifting further and further apart
its five weeks of our summer we wont see each other
we use to talk everyday when i first left
and now we barely talk

dont tell me im acting like a child
but your the person who helped me at my worst
you know me better then i know myself
i feel like i'm losing a battle to keep out friendship strong

i look up to you about the depression stuff
and everday a pasrt of me is sadder
i couldnt tell you but i've started again
i havent told anyone and no ones noticed

whats happend to us??
we use to tell each other everything
and even though i may be a year older your more experienced and outgoing thn i am
im still in pain not telling anyone all the suffuring that im in
and as im writting this
...........i wonder if you even care

your attitide is stronger
i know your having problems
so just open up inside
and as im writing this....
i HOPE you really even care
so.....

What has happend to us??