Iīm not in your situation, but Iīd like to share a simliar one my friend had. Sheīs been 10 years with the same guy, married now. The most faithful couple you can imagine, certainly to cheating. She came down with genital herpes 6 years ago. Got tested and apparently it was hsv-1, the oral type she now has genitally. Her husband got tested too and all tests came back negative. So they donīt have a clue either how she got it!
Taking a blood test is tricky, thatīs what Iīve learned from all my research. First of all you have to wait for months usually before anything shows up, before the antibodies build in your body. I had a blood test run during my first ob and it came back negative. So my exposure should have been very recent. Iīm planning to take another test in a month or two to find out my type.
I was sure herpes was included in general std tests but my gyn says itīs not. I live abroad at the moment and told my local gyn that for sure they test it in my home country. She said that they wouldnīt. Makes sense for me now since herpes would be so hard to detect. Could be you have it but it doesnīt show on the test. Or could be youīre positive for hsv-1 but you have it facially, a normal cold sore. So the only way of telling for sure if you have it genitally is getting tested all the time and wait for a possible ob.
Very complicated, believe me, Iīm still very confused, about a month after my first ob started.
AS for him not having a lot of symptoms, us women always get the worst part. Generally stdīs are a lot worse for women, our "equipment" is so much more delicate. This is why so many guys do spread stdīs, because they just donīt know they have one. Iīm sure most donīt do this on purpose, they just donīt know.
Hope this helps a bit