I think it all depends on you. Don't be a Jealously idiot.

Your GF also needs to have her own circle of friends. If she keeps
glue to you, one day also sianz..
Moreover, she has her own likes who to be with rite>? As long as
she doesn't cross over the friendships line with her friends, you
should more generous to trust her.
Don't be a MCP, give her some freedom to breathe.. You held on too
much and more she yearns to fly away from you.
A certain amount of care and concern as a boyfriend will be enough.
Not to the extent of controlling her freedom and choice of
friends.
In this way, both of you should be a ble to "grow" from this
relationship.
Good luck