Dear
Lutesium;
You misspelt it, why you misunderstood it.
Counter
Cation not Conter
Action! – And that’s why polar but
Aprotic Solvents are required!
In case of protic solvent the built Cation would “
first/prior” react with the solvent.
That’s why in such cases THF, DMF, or DMSO (etc.) is used.
THF may be weakest who resist the Deprotonation and even solves (at least) several Sodium Salts.
Additionally you may read: "
Deprotonating”
(It has several in common with you other Question.)
Good Luck!
ARGOS
++