Can you share your database setup, specifically where ‘Title’ is stored and what type of content it is? And how you’re currently using the dropdown to change it?
If you are using Auto-binding, please check your privacy rules to make sure auto binding is allowed on that particular field.
When you store an option in a the database you will always see the display field of the option.
In your setup, if you really want “Monsieur” (I am French, that the right name by the way) to be stored in database. You option set should look like this:
I have an option set that sets the language which I also use and attribute on the Option set e.g English is 1 and French is 2. so based on the language number for each user display either the option set or the option set attributes.