My Boyfriend’s Ex Girlfriend lyrics

[Verse 1]
One day, I was sitting in class
''Gotta know'', they'd said
"Watch your back"
Someone told me who it was from
She wasn't happy 'cause she just got dumped
It was over, but not in her mind
It's not my fault he left her behind
I always knew they had a history
I didn't know that it included me

[Pre-Chorus]
She wasn't ready to let him go
Now I'm dealing with a psycho

[Chorus]
My boyfriend's
Ex-Girlfriend
I think she's going off the deep end
She loves him
She hates me
They broke up
Now she wants to blame me
Na, na, na, na, na
Na, na, na, na, na