Love to one formula is best in my point of view.
You people can disagree with.
Thanks fir your interesting topic... lovelyDear @nomad-magus ... my point is why we give a chance to be ex bf/gf.... why we have just one for whole the life. If we have one and not think of other one so our dreams will be automatically for only one... but on another hand if there is some possibility of making ex bf/gf... than we have to forget the ex because love for one will be pure otherwise it will create problems with the current too.