Hi Rachel welcome to the forum, what makes your BF so sure he wouldn't be allowed to leave Tunisia. There is criteria to meet, basically the onus falls on you should it be a visa for settlement here. Main factor being the earnings rule, youm ust earn £18600 per year. We have many threads in the visa section on here have a scroll through.
There is a new thing that says if they get called up they can't leave country for a period of time (think 1 or 2 years) and can't marry until completed service...when I emailed the embassy they were unsure when this ruling will come into force
hello im tunisian and i felt the same when i applyed for my fiance visa i didnt think one day they gonna accept it but finally they accepted it and im preaparing my self to go to the uk just its a result of logique thinking that we do here a tunisian citizen is not wanted in europe good luck
There is no such thing..
You have a UK visa .. Nobody in Tunis will forbid you from going there..
Unless you're going to Syria or Iraq or any war zone..
Although people with criminal records (more than 3 months in jail) may even have some troubles to sort out a passport ..but of course without a passport you won't be able to get the visa to begin with..