Mating Bond
As the planet chooses partners based on complementary strengths and talents, compatibility, and other factors, it is hard to imagine anyone rejecting the bond. Especially because if the bonding of the power lines had progressed enough, one or both partners will die as they attempt to separate.
Does that mean that nobody ever does it?
Of course not, there are plenty of stories and reasons why people might reject a possible mate, flee a possible bond, and risk everything to prevent the bond from forming. There are also those who try to force the bond to form. The results of that is what leads to the advice to let the bond grow naturally and with no interference.