On the other hand, you can also still really love someone even if they treat you badly or make you feel sad. You can feel love in different ways – for your parents, your family, your friends, or for a pet, as well as for a partner.
There's no one-size-fits-all formula in relationships either. What works for one couple might not work for another.
Usually a relationship starts when two people fall in love. They may begin seeing each other on dates. In some cultures, it's accepted for a couple to live together and have a sexual relationship before entering into a marital bond. In some societies, couples get married before they start living together or have a family.
Unfortunately, not all relationships work. Some fail, and there can be varying reasons for relationships to fall apart.