My ex boyfriend already has a new girlfriend and it’s only been a week. Is she just a rebound and they are not going to last?

Why did he move on so fast? We were together for two years. It’s only been a week. I thought we were just taking a break but his stories are now of his new girlfriend.
My ex boyfriend already has a new girlfriend and it’s only been a week. Is she just a rebound and they are not going to last?
My ex boyfriend already has a new girlfriend and it’s only been a week. Is she just a rebound and they are not going to last?
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