Don't confuse kindness with flirting. But yes I think one can. Even if it means trying to avoid this good looking being in order to have a clean conscience. I love seeing these sort of situations when bf/gf makes it clear they are not flirting.
I am not in a committed relationship, therefore it's a nonissue for me, thank you very much.
Yes easily and Ive had plenty of chances.
Nothing wrong with harmless flirting. If it turns to more than flirting than its bad.