You treated her mean.
Almost like a slave.
Dictating when she should or shouldn't speak.
What friends she can see?
What clothes she can wear?

And you wonder, why she isn't happy.

You put her down.
When she tries to impress you.
Speak negative of her when she dress to impress you.
Why she stay?
Many ponder that question too.
And you wonder.

Wonder , how she had the nerve to suddenly leave you?

If you hadn't located that answer.
Then think of your bad behavior.
Then you know the reason she found a new lover.