I think the most important love is (self love). Without it you are likely to make many poor decisions for yourself. This leads to selecting the wrong mate for yourself, staying involved with toxic people for far too long, not giving your children a loving and responsible co-parent.
People who have "self-love" and "self-respect" for themselves also have the ability to love and respect others. However they are selective with whom they allow into their inner circle. Those who lack self-love and self-respect for themselves are often led astray and taken advantage of. No one should become a "doormat" in order to please others.