I just tested positive for hsv 2, how to discuss this with my fiance?

Me and my fiance have been together for 3 years. We met e/o while incarcerated. So technically we haven’t had sexual contact until being released! I want to note that we don’t have sex often because we don’t live the closest to e/o. So we may meet up once a month! So now that we have been sexual with e/o for about 5 months! I had went to the doctor after the first time we had sex, because when he comes inside of me I have some discomfort / pain the next time we have sex. I was unsure why that was. The Dr. had done an std test, they didn’t test for hsv 1 or 2 at that time. Anyway’s test came back negative. So this past sexual interaction I had some more pain after sex and I just thought it was because we had a lot of sex. So I again went to the Dr. and they wanted to do some more testing and when they saw my vagina they said it looked as I had a leasion down there, so they sent in for hsv testing and the swab was negative, but the blood test was positive. I had no clue I had hsv 2. I really want to discuss this with my fiance but I don’t know how to! I don’t know if I already had it or of I contracted from him, and I don’t want to play the blame game! I need help on what to say! I thought some what about it and I came up with:

When I went to the Dr. they tested me and I came back positive for hsv 2, I don’t know where it came from and I don’t want to blame you or you blame me. So if you knew you had it and didn’t tell me, I don’t want to know, I just want you to be aware of this information that has been given to me I’m not upset and this is something that we both have!!!***

I’m stuck on what else to say so if someone can help I would appreciate it thank you!!!