When Love Lies

You say I'm the one.
You say you love me.

Then I turn around,
And you're with another one.

I trust,
That you lie.

You want your own life.
I realize that this is mine.

I lie,
To excuse you 
I do love.

How long will this last?
How much can lies cover up?
How long will I last??

I know I love,
But what is it I love?