Me and ex are on a break and this was his response what did he mean?

We are on a break and I said to him if he meets someone in a few weeks time and he's giving that a chance can he please let me know

His response was "I doubt it will be that quick, I am not in a mood anyway, it was mainly a mental thing and if you do the same for you please let me know"

Me and ex are on a break and this was his response what did he mean?
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