Dating - not planning on telling him right away

I have genital HSV1 and was diagnosed with it a few years ago. There is this guy I have know for about 3 years and we have a connection. We have only seen each other once a year because I only see those friends so often. We have chemistry and are going to go out on a date. My fear is that we get too close and it gets ruined because of this condition. Also, that my other friends will find out because I told him, and I dont want that to happen. We are going to go on one date but I already know we will go out again. I dont want to have sex until I get married due to this condition. I am not planning on telling him right away--until I know he could be the one. Any advice would be welcome. Thanks.