Love is complicated

There are two people walking together, one is lover and one is friend. Suddenly a well comes across the way, love jumps into it why? Because love is blind.
afterward friend also jumps into it, now donot ask why again because a friend can do anything for love.
Now it's complicated, they can neither be a friend nor as a lover, again why? Because now they realised that one of them was already in a relationship with someone else.