Slovenia is largely influenced by Roman Catholicism, and is, as a whole, still considered to be rather conservative, especially regarding public reactions concerning gay and transgender rights and visibility of LGBT people. In the last few years there have been a few mass-organized or group violences towards LGBT activism and manifestations.
same could pertain to Croation, which is also very conservative, but since the first gay pride in 2002. Republic of Croatia bans all anti-gay discrimination, unregistered cohabitations have been introduced, and more and more politicians and celebrities support gay rights, with some decided to go out of the closet.
So I am going with Croatia