I'm not a doctor but doesn't look like you are at high risk if your friend isn't at high risk and wasn't exhibiting sings of Ebola:
What are the signs and symptoms of Ebola?
Symptoms can appear from 2 to 21 days after exposure and include: fever, headache, diarrhea, vomiting, stomach pain, muscle pain, and unexplained bleeding or bruising. Ebola only spreads after symptoms begin. If a person has no symptoms, they cannot spread the virus.