What examples do you know of where fans actively express that they are rooting for a couple to break up?

Sometimes I feel sunshine and rainbows, and suddenly I feel sad and unhappy for no reason. Sometimes I feel very excited about something I want to start and then I feel really really demotivated to do anything. How can I get through this?
Why do people often overlook the complex political landscape of Palestine and Israel when discussing the "Free Palestine" movement?