Love, as a feeling, is just an emotion that people feel towards other specific people. Love as a choice is something done for others because you love them, usually caring for employees.
The ideal form we should use is assertive. We should use that communication style due to the work that needs to be done. We need to be able to communicate in such a way that will tell people that they need to get to work in a polite, but strong way.
If you love someone truly you would be willing to discipline them to better them. If something isn't fixed that could help someone to become a better person then you need to help that person reach that goal.
Character is who you are and personality is how you act. This is relevant to leadership because you can have a different character than personality. At home, you may be a laid back person that doesn't really want to do work, but at school or robotics you could be working extremely hard and helping others with their work.
The discomfort can come from either your displeasure, another person's displeasure, or a decrease in productivity. All of these things can cause a change in work ethic to increase the specific person's productivity.
I have learned that love is a very important thing in order to lead a group of people. Love can change how people work and how people act.