Dating someone with an STD.

My boyfriend and I were recently tested and he came back positive to HSV-2. We have no idea how long he's had it.  Genital Herpes. Never had any symptoms or outbreaks. We now use condoms and practice safe sex. I know I'm still at risk but I don't want to leave him. I get tested every 3 months. I'm 30 and he's 42. We want to have kids one day too. 
Oral sex? Can I do that on him or must I use a condom?
Other things we should be careful of or stuff we can do to not feel like our sex life is over? 
I am well aware if any outbreaks occur no sex at all to all forms of it. Any advice I'd appreciate!