She wants to break up with me so she can see her options?

She's so unloyal hun. Good riddance.

she is loyal but she brought this up yesterday night and I have been thinking about it ever since

Well apparently not. Who knows how long she's been planning to get it on with other men? Skank.

She's not loyal. You deserve much better. Tell her if you break up you won't wait around for her.

She said this when we watched the great gatsby together yesterday night and I made her repeat it 4 times to make sure I was hearing that correctly and I asked her why and she said that, it is very common in the society and it happens and she said that she wants to live her teenage years, go clubbing etc.
I let her have guy friends, talk to them and try not to be controlling because its not fair and when I ask about them, she is honest and tells me about them and what they talked about etc. I even let her catch up with a friend who is a guy, then later this guy confesses to her that he had a crush on her and he asked her out although he knew she was in a relationship with me, then I get angry at her and she backs him up saying that you would obvi tell the person if you had a crush for such a long time like idk anymore

don’t let anyone treat you like a second choice!!! kiss her ass goodbyeb

Yeh I said that to her and she said that I failed the test? like what test is there.
then I said that she is moving away from me etc , then she started crying?? then said that she loved me??

like it makes me feel insecure and if I am wasting my time?

Your girlfriend has her head screwed on properly.

She's looking at the long term.
She's showing wisdom beyond her years.

You should fully approve of and support her plan.

This means that you should enjoy your time together with her until the day before each of you goes off to uni.

Then, on your first evening at uni, you both turn over a new leaf, become single again, and take this opportunity to reinvent yourselves. For example, if you've always been a bit on the shy side, it'd be a good time to become a more outgoing person.

You should both try other sexual partners. Chances are, neither of you will look back. Chances are, you will both find someone that you prefer to your present partner. But you never know. You might find that you love each other just the same or more after taking a sabbatical from each other.

After all, you don't really want to be one of those boring square couples that have been together since school and have never sampled all that student night and social life has to offer? One of those couples that just lives within rather tight comfort zones all the time?