Good luck Lewis =)
your a big guy and im sure you'll keep your head up. It may all change back again in a few months, maybe she just needs a bit of freedom without the thought of you both still being together as such.....and if not then at least it happened before it got to the stage where you resented each other and argued all the time. Youve got all the good memories this way, which will help you make sense of it all in future =)