Cold sore/genital herpes

Basically, I have been quite run down recently and last week I was been off work sick with throat ulcers. I also had a fever and migraine. I have had a small crack/sore in the corner of my mouth for about a week or so. It was only sore when I opened my mouth and because I have never had a cold sore, I assumed it was a result of chapped lips. Unfortunately, the boy I am seeing has come up with a small blister on his lip a few days ago. He has never had a cold sore either. By the time I noticed what he had on his lip he had already given me oral sex. I had also given him oral sex a few days earlier whilst my mouth was still sore.
I went to a sexual health clinic today and was told the sore on my mouth is a cold sore drying out, which means I have clearly given my new boyfriend oral herpes, but I am now terrified that both of us will have caught genital herpes from each other. I am really stressed out about it and the nurse at the clinic was really unhelpful. There seems to be so much conflicting information out there.
I don't know what the chances are that either of us will actually contract genital herpes?
I am confused as to how long it will take for me to get an outbreak? Is there anything I can do to prevent it or ease the pain?
If I have given him genital herpes, what are the risks of us reinfecting each other during sex with condoms?
How can I stop it from spreading to other places on my body?
Any information would be gratefully received.

[xxindie]

anything?

[IDTB]

One of you could have given it to the other, But once you both have it, you're not going to "re-infect" each other if you both have the same type. (eg: HSV1)

[gracefromHHP]

if your partner contracted hsv1 genitally, odds are he would have symptoms within 2-20 days of you performing oral sex on him.  

it's never a good idea to perform oral on a partner when you have anything going on orally or are otherwise ill. Many viral illnesses can be transmitted from the oral area to the genital area and cause a partner problems so it's best to avoid doing so.

at this point, nothing you can do. If in a few weeks your partner had no symptoms genitally, you know only oral hsv1 was transmitted to him.

grace