I have been going out with my Gf for 3 yrs. The relationship was going down hill due to us arguing all the time about stupid things. Two weeks ago she said she wanted a brake. She told me she wants to do her own thing and concertrate on school. She really wantes to move when she's grads. From college. While we were talking about the brake she said she for the past 3 yrs of us being together she pic us being married... but she didn't have the heart or strength to work on the relationship right now... when I left her house she said we can still be friends... so I'm wondering what does this brake mean... and what should I do should I wait for her or do you think the brake thing is another way of saying its over... and I haven't seen/ heard from her since the start of the brake 2 weeks ago

I would say that she must have been trying to let you down easy rather than just coming out and saying I want to break up
I need a break, we can be friends and then no contact-don't hear from her in two weeks.
Must mean get on with your life and forget about her.

She moved on long ago and just never officially broke it off until now. I bet if you think back you can even figure out about WHEN that actually happened.

Don't let the fact that SHE broke up with YOU fool you into thinking there's something you can try to get her back. You two have been together long enough that she knows who you are, who you REALLY are, so anything false you try will be immediately seen for what it is... and you'll look desperate.

It's over. Time to immediately turn those feelings you have for her into GOOD memories and don't let yourself get negative over it. Take what you learned about dating and being in a committed relationship, figure out the stuff you did/do to make things bad for yourself/her and don't do as much of that in your next relationship.

Start dating, don't push, have some fun, go some places, meet LOTS of people. You're going to like a lot of girls once you start looking again, be cool and let the good ones into your life. You'll do fine.

Your single now, and if you contact her or bother her she will push herself away more to where she won't be friends with you neither...

Yep, it is over, move on, have fun, she is.