SUBREDDIT: r/relationships
TITLE: Me [22 M] with my 22 F] and partying issues.
POST: Me and my girlfriend who have just shortly started dating about 4 months ago have had a very healthy relationship and still do but we have very different view points currently on a situation.

She in her past relationship was very controlled by her ex and rarely spent time with her friends ever. She now spends a lot of time with her friends which I'm all for but my problem is the social setting. Almost every weekend / other weekend shes either at a party, club or a bar. I'm just uncomfortable because I rarely go out with my friends since we prefer to stay at home and because I dont feel a real need to since most people at these social gatherings / clubs are there for the sole sake of picking up the opposite sex. (On that note that's not necessarily true just my view ) Now I know her friends go just to dance or to the bar just for the sake of going out but I cant help but feel uncomfortable about her being surrounded by drunk guys constantly. 

Her friends have all been there long before me so I dont want her to flop on there plans and hate me because I'm controlling. Her friends also are all single though so I can see why they would want to go to these gatherings despite my girlfriends reinsurance that they just love dancing / going out.

I'm just wondering if I'm being insecure and just move past the social setting and understand shes a very faithful person who would never cheat or am I justified in being uncomfortable with this all and what should I do?
TL;DR: 
I trust my girlfriend completely but shes constantly in social settings where she is drunk surrounded by drunk guys which does make me feel uncomfortable. I dnt want to restrict her and come off controlling and ruin her friendship with her friends.