Dash Riprock
Master Don Juan
This 100%.Why are you upset about a situationship?
Either A. you didn't want to be exclusive, which is what she's also doing.
Or B. you DID want to be exclusive but somehow went 9 whole months without defining the relationship.
Having a "hey can we talk" moment in response to her not answering in a timely matter seems like you're WAY too invested in someone you're not committed to.
She gave you time to commit and you didn't. There's really nothing for you to be upset about. She moved on. Some other guy will girlfriend her up.
Live and learn.