Could my BF have HEP?

Yes it would have shown up in the blood tests. I'm sure one of the first things they would have tested for is hep c. Even in the unlikely hood that he does have it the chances of you contracting it through sexual contact are something like 1%. Hep c is usually transmitted from mother to child (during childbirth) through iv drug use or getting a tattoo with an infected needle. My friends husband had it and they were married 20 years and she never contracted it. They had unprotected sex and 3 children during the marriage with no issues so even if he has it you probably don't. The best thing to do is find out for sure if he's been tested then you can go from there.