It makes me sad

Seeing the change,
it just felt so sad.
There were times when I tried to figure where does the problem lie,
me?
Or you?
But it seems like both of us are at fault.
I'm at fault for having the change in me,
and you're at fault for having the change in you.
Or perhaps nobody's at fault,
it's just that we're not suitable.
Witnessing the situation today just made me sad,
and when I'm alone,
I reflected about it.
Flashbacks a few months ago came back,
all the way until now.
I can see the change,
I saw the way we change.
I saw how some of us became bias,
while others were just cool about it.
Perhaps I'm just too sensitive,
maybe you don't feel anything.
But I'm really sensing it breaking.
And seeing it just made me felt sad.
But I guess that's just life,
some people just don't click,
some are just not suitable for each other,
while some others can go on and on.