lipwaysr - welcome to PGG.
question lang: does your gf go out with her friends? does she go out without you?
in my opinion, parang ang selfish kasi kapag she gets to go out with her friends, pero ikaw hindi ka nya pinapayagan? I feel na unhealthy yung ganong relationship.
may nagawa ka ba dati (e.g. cheating, lying, etc...) para pagdudahan ka ng gf mo? you need to find out the reason kung bakit ganito.