Broken hearted realisation

You asked me out,
But you like her.
I'm not sure anymore,
If you're what I'm looking for.

You said you liked me,
You told me not to change.
But that wasn't the truth,
Your thoughts were rather more ranged.

You thought she wasn't my friend,
But you were so wrong.
She told me all,
About how you flirted with her for so long.

I watched out,
To see if this was true.
I cried that night,
The night I realised the truth about you.

I ended it before you realised I knew,
And you still don't know I do.
But the truth is,
I'm starting to get sick of you.