A downfall in Romeo and Juliet is when Romeo kills Tybalt which then sparks the event of Romeo being banished.
She doesn't; she gets so upset that Romeo got banished, she dies of sadness.
Mantua
Instead of being killed, he was banished from Verona.
Romeo is supposed to live out his banishment in the nearby town of Mantua. This is where he flees to after being banished from Verona for killing Tybalt.
Romeo was banished from Verona and sent to live in Mantua.
Death.
He isn't banished anywhere he is banished from his town that he is currently living in. Meaning he can go anywhere else. *He is banished to Mantua
You just answered your own question. "Why does romeo get banished after killing Tyblat?"
Romeo killed Tybalt, and is exiled from the city of verona.
Romeo will stay in Mantua while he is banished from Verona. He flees Verona after being exiled by Prince Escalus for killing Tybalt. The Friar arranges for Romeo to stay in Mantua until things calm down.
Mantua