Most hepatitis is not an STD and I am not a hepatitis expert. You need to speak with your own provider, or if you want online advice, you might try the American Liver Foundation website (http://www.liverfoundation.org/). (I don't vouch for ALF and do not know whether they accept questions like yours.)
Mild abnormalities of liver function combined with 'fatty liver' suggests an alcohol problem--but I don't think fatty liver can be diagnosed without a biopsy. As I said, I'm not an expert, but if a gastroenterologist wasn't concerned, you seem to have no worries.
You could not have acquired viral hepatitis during the sexual event you describe. Even if you turn out to have chronic HBV or HCV, you got it someplace else.
Good luck-- HHH, MD
One more question? I am assuming my 11month negative HIV test is confirming even if there was a coinfeciton?
Sorry, I missed the comment about the ultrasound and fatty liver.
Of course the negative tests prove you weren't infected. Why are you even on this forum asking the question?
No follow up comments or questions. This thread is over.