[Symptoms only occurring in isolated area. Does this mean that it is the only contagious area?]

Hey guys,

I contracted genital HSV2 around a year ago during a one night stand due to my condom splitting at the tip.  Only the Head of my penis was directly exposed and my symptoms occur exclusively on the head also! 

I get mild symptoms (one or two blisters only and/or red marks), however quite frequently and I take Valtrex suppresively because of said frequency (HIV negative btw). I dont get blisters while on Valtrex however I do sometimes get what look like the red marks that come before a sore.

So my questions are:

Is the fact that only the head was exposed to the virus the reason why I’ve only ever had any form of symptoms in that exact area?;

Is it likely because of this I may only be cable of spreading the virus with contact from true “penis head” area or would my whole pelvic region shed the virus also?; 

Am I likely still contagious when a red dot/mark shows up even when I’m in suppressive therapy?; and

what are my chances of passing it to a partner if I avoid sex during an outbreak (obviously), wear condoms and remain on suppressive therapy? I know this information’s out there but the studies are hard for me to understand and a lot of the articles are quite vague or conflicting in regards to chances of transmition. 

Thanks in advance!