Why?

I gave him another chance
Why did I even give him a second glance?
Why didn't I walk away?
Laugh at the lies he had to say
I finally let myself love him again,
I opened my heart and let him back in
I said the words I was scared to say
That I loved him more than the light of day
I finally told him how much he meant to me
And then he decided to set me free
He said wanted time to be sure we were right
And that night he we had our first fight
And instead of letting me explain my side
He cut me off every time I tried
Twisting my words to make me sound hurtful
Twisting my thoughts to make me look spiteful
And when we finally had a real talk about it all
He once again made me feel so insanely small
Because he told me he was falling for another person
He was growing so close with this woman
I told him he needed to choose,
He could have her, but he knew what he would lose
He gave up a chance to rebuild his life
Rebuild his family with his son and I
Why did I give him another chance?
For him to just throw us away like trash?