<human>: i said some horrible things about my GF when we first started dating to my friend on Fb.. 

I was being a bit of a lad and being derogatory to her, I also said i prefer her house mate.

My Gf found these things I said and is quite rightly so upset.. I have no excuse, it was me being a bit of a 'lad'... i dno, i was sort of showing off i guess... 

Any ideas if what i did was normal, and if its even right she take me back. I feel awful. I cant believe I could be so spiteful, and the fact i said these things about a girl i now love. and she is now sitting alone so confused makes me so fucking sad.

What should I do, I dont want to lose her.

Can you condense the text into three sentences or less?
<bot>: said awful private things about my gf when we were dating to a friend.. she has now found what I said and cant believe I am the same person.