Yes, it is strongly encouraged to not give anyone that right no matter how sure you think/feel you are. Spread it out. Minimise the risk. Better yet, start with you. Be your own source of happiness. You will then be at a better position to attract more happiness and joy to your life. Sometimes we find someone that supposedly makes us happy and we think that person is our ‘everything’ but we also forget especially in those moments that everyone have their off/bad days. No one person is perfect. And it is usually the ones who brings the most happiness to your life who have the potential to bring the most hurt too. So think real hard when you are going to give that right away. If that thought brings you much agony and confusion, just hold on to it tightly or, you can always give it to the Creator, the source of everything.