Why I do what I do
From personal experience, I know relationships can break down after a rosy start. I wanted a better long-term future myself, so I took it upon myself to learn how to build and maintain a happy relationship. However it feels pointless keeping my knowledge to myself.
I will not be on this earth forever, so I want to make sure that whilst I am here, I can help as many people as possible in a field I have expertise in and enjoy. You benefit with amazing advice that you will apply to your own (future) relationships. I benefit by going to bed with a smile, knowing I helped somebody today. That is what you call a win-win !