SUBREDDIT: r/relationships
TITLE: I'm [19 M] trying to decide if it's time to break up with my girlfriend [18 F]. Not sure if it's justified or how to go about it.
POST: A brief backstory for everybody. I've been with this girl for 2 years now and she really did become my bestfriend. I fell in love with her almost immediately and for the longest time, believed she would be the girl I would marry. That was until I went off to college at least. As time went on she slowly demanded more and more of the little bit of free time I had. In her mind, if I'm not busy, I HAVE to be with her or else she will get upset. She progressively manipulated me into not hanging out with any of my guy friends because I get into too much trouble when I'm with them apparently. I was almost blinded, and for the longest time didn't see anything wrong with this. But now I'm getting to the point where I don't think this is healthy for either of us. I care for her so much and it would kill me to not be with her; I'm just starting to think it might be in both of our best interests to go our separate ways. I just have no idea how I would even begin that conversation.
TL;DR: 
Girlfriend has become super clingy and smothering since I left for college and I don't know if it's time to break up or not.