There are several factors involved in determining risk of
transmission. In general though, the longer a person is infected, the
more that person's immune system learns to cope with the virus. That's
why people's outbreaks usually diminish in frequency and severity over
time. Same for asymptomatic shedding frequency. So yes, in theory your
risk of infection should be substantially less than it would be with
someone recently infected with frequent outbreaks. It's slim but not
zero though.... but neither would be the risk with someone that thinks
they're not infected but has never been tested. Most people infected
don't know it (have you been tested?).

M2