Hiv dose not exist when exposed to dead fluids...
Once a fluid has come out
Of the penis or vigina its dead and at no risk at all so she could hand job you all she wanted you was at no risk
You only have a tisk of catching an std if the fluid is not airborn like if its passed throgh sex or inside of mouth even then the person giving oral or receiving oral has to carry the hiv or an std inside them....
Since there was a connection between her fluids and a break in your skin you are at risk of any std. I recommend watching yourself for any rashes, discomfort, or pain. I also recommend getting a test to confirm because some stds show no symptoms.