I agree with you on that to an extent, but honestly the definition of "true love" can mean something completely different for other people. Some people believe in the hokey pokey love that is seen in movies but I don't see it that way.
I see true love as a relationship that has its problems, but the problems are still able to be worked out. Like with family! You may all have quarrels and conflict, but in the end you still end up loving them anyway.. Now, not every family is like that, but families full of loving family members are like that. Same goes with life partners.
Love is a strong emotion and it's often times the root of people's emotional problems. Human beings want attention, they want to be loved. They want to have purpose in people's lives. I mean, I'll even throw anime in as an example. You always see it in anime. The characters want to have purpose, they want to be important to others. It's just how we are.