Herpes and help 😭

So my boyfriends ex has herpes and he didn't know at the time as she didn't have a break out and her friend only told him afterwards well anyway we've been together for two years now and I've showed no signs whatsoever and neither is he, I'm going to get checked out but I'd like to know the chances of me having it😭 please help 
He said he had been checked for it and got the all clear but I'm still not sureÂ