I feel cheated

just cheating by my girlfriend.
just lied,
just played with other feelings.
I feel cheated,
my friend has betrayed me
never loved me,
just my girlfriend.
Just my girlfriend cheating me.
just tell them everything about me.
played with feeling,
yes, she did.
My friend, who is thought I'll trust him,
he also has betrayed me.
deceived, and cheating.
how I keep it out of this world?