It is certainly is not unexpected. The only thing surprising about it is the timeframe of only two and a half months until the term "new relationship".
While I linger in pain, she apparently has already moved on.
I spent the night walking around the empty streets with a bottle of vodka... while she seems to be perfectly fine.
The main reason why I left her is that I thought that she deserves something better. But there was always the hope that I might become that something better.
Only yesterday, I had my hopes up, only to have them crushed completely today...
But it is still fucking awfully painful...