In all honesty.

I don't love you like I used to.
That was shattered when you tore me apart.
When you broke every little bit of trust I gave you.
I miss what we used to be, but I do not miss you.
You were selfish.
You were cruel.
You were distant

But the main reason why I don't love you like I used to.

It's because you made me hate love.
The very thought of it made me rage.

But he,
He filled the void you left in me.
He's given me back faith in humanity.
He made me realise love is wonderful.

You are not him.