There are many levels of love. Each of us are different and have our own motives for love. I can tell you the the goal or hope for all love should be marriage. That is the crowning achievement of love. Total devotion one with the other. No 50/50 but rather 100/100 happily and with complete fidelity. Love with the intent of spending all time with that person even beyond death. Each of us are truly incomplete without the other and the learning process that accompanies it.