What do u comprehend?

I have been recently going through a rough phase in life..In an exam i di not perform well eve though my gf was 1 of the toppers..since then she has been supporting me day n night..not having enjoyed her success a bit..i hv emtionally drained her..but i need more support and luv at this point of time..then out of frustation i blamed her for my results..coz wenever we had a fight..it was easy for her to forget things and i was always emtionally doomed(being sentimental)..and at those times she did not lose her ego to calm me down..i agree i have been harsh on her the last few days..now suddenly she tells me that she is the 1 responsible for my results..and tells me that she is not leaving me..but for my better she wants me to be away from her..please tell me wat should i comprehend from her recent behaviour..i love her and i dnt wanna lose her?