@V_BTS_22 Friendship before love is very possible, and better in the long run because love before friendship usually doesn't last a lifetime as it most likely was only based on physical attraction alone. But friendship to love there is also mental attraction.
@V_BTS_22 I would smile, say hello, after that I can not say as it really depends on the situation like are we meeting each other intentionally or just by chance. But I would be happy to have had the opportunity.