1- No connection betwen UK and Schengen Land.
2- There is no such thing as a fiancée visa in Schengen Land. It would be a tourist visa, but it may not be that easy to obtain, unless your finacee has substantial property holding, great job, subtabnatila savings etc i.e. very good reasons for not over staying.
In our case we married in Phil, then the Schengen Visa for Spain was easy, after getting through the Phil paperwork, but that was not Spain’s’ fault (except that they were the colonial power for 300 years so taught them ‘Manaña’ that can mean ‘not today’.
3- No such thing as an exam for Schengen.