I don't mean to sound as if it were yesterday, I'd be freaking out. I wouldn't be worrying about herpes at all. I'd probably be more worried about the flu.
Yes, but no one really knows by how much. A lot depends on how much virus he/she has present in the outbreak, how much time had passed between their use of the utensil and yours, how chapped your lips are, etc. There is just no way to quantify this.
Have you ever been tested for hsv1? You may already have it and not know it. 90% of those with it never get a cold sore. Ask your doctor for a type specific IgG herpes blood test.
Honestly, it's cold and flu season. You are really better off not sharing anything right now (or ever, but at least not right now).