What do we love people for?

As far as I understand it is not because of what i can get from them, quite the opposite ,it is because I think I can do something for them.  I

 love because of the way their eyes shine when they look at me, or because I know that when they are blue it is me they will call cause I can bring comfort to their souls, or because what they want to share is best understood by me.

As I said before, that is how I understand to love, which makes me wonder…

Do I love the right way?

If the answer to that question is 'yes,' I assume that when a person stops loving me is because the need they had, which was to some extent covered by what I gave them, not longer exists, or it has been replaced by something, or somebody else.

Therefore I should be happy because the person I love has found a better way, another person, a new hobby, a drug,  to fulfill his/her needs, right?

If that assumption is correct… this pain I feel cause you don't love me anymore is just a reflection of my ego that:

•  cannot bear the fact that I am not good enough for you anymore, right?
• Is only concerned about how I feel and not about how you feel, right?
• Cannot understand what/who can be better than me for you, you?

Being all of those assumptions true, I can only ask again… do I love the right way?