Yes, it is unfair when the reviewer has rejected your edit and done the exactly same edit you have proposed.
This can be resolved through the following steps.
We all make mistakes. The user might have clicked "Reject and edit" and didn't know what to do in the next step. It happens sometimes with users to whom review queue is new. To make sure, first ping that user in a chat room or in the comments directly with "@editor name" to ask if it happened by mistake or whether it was intentional. Ask them to click "improve" if they were going to copy your edits.
Flag the post for a moderator attention (as a last resort) if the reviewer has not done anything but reapplied your edit. Moderators can approve the edit even though it was rejected in the suggested edit review. Moderators will also keep an eye on the edits queue if there is a pattern of such behaviour.
If it is still rejected, a meta post on respective per site meta would be good.