I Was Diagnosed With Genital Herpes. I Have Been In

I was diagnosed with genital herpes. I have been in a relationship for almost a year and was monogamous. I was told it had to be from him, yet he has not exhibited symptoms ever. One, I don’t understand how that is possible, and two, I’ve had mixed info on how to protect myself and future partners. Of course condoms, but I read it can still be passed by “shedding” when I have no symptoms. Would love clarification. Thank you.