It is almost impossible that you got it from your smear. It transmission generally requires direct contact with a sore, and friction. OP, i would go to the herpes viruses association website for facts and information. There is a remote chance the nurse had a herpetic whitlow on her finger and a hole in her glove. Very remote.
Genital herpes can either be HSV1 or HSV2. HSV1 normally causes coldsores but can be passed to genitals through oral sex. Both types can be passed on when using a condom as it's passed on by the skin rubbing together, so if the male had a sore not covered by the condom, it would offer no protection.
Practically, you may not have it. It's not been confirmed. After that, what happens next in terms of outbreaks etc is very dependent on whether you have type 1 or type 2. Type 1 normally causes coldsores and generally results in less frequent genital outbreaks. Type 2 can generally cause 4 or 5 mild outbreaks a year at first, reducing in regularity over time.
Assuming you didn't recently catch it i.e. from your smear, DH more than likely already has it but doesn't know it. Over half of people don't get symptoms.
Emotionally, when I was diagnosed (type 1 caught through oral sex) i was devastated. Same as you, felt dirty, disgusting, confused. Just awful. However, 2 years on, I've had two very very mild outbreaks and genuinely it's had very little impact on my life. I've made my peace with it. You will too, just give it time. It is very very common, far more common than you'd realise.
Please do visit the herpes viruses association, honestly it will do you the world of good.