How would you reply to my ex? (TEN POINTS)?

[Rina]

I'm a girl and I don't understand her. I think she definitely overreacted.
You're a nice guy for trying to spare her feelings and you didn't do anything wrong. Girls are full of drama.
I think you should end the relationship. Tell her that you think it is better for you to be apart, rather than staying in a relationship that is clearly not doing anything good for you or her.
If you want to , you can tell her you will help her if she ever needs you to (you said that you care about her), but stay strong, don't slip into a relationship with her again and after a while, if you think it would work, you could end up being friends eventually.