When you are happy with someone in private, you don’t need to prove it on Social Media.
Social network is a playground (platform) for people to share and communicate with each other. Social network is also the place to spread information quickly and widely.
You can use social network as a tool for work, personal development, social connection. You can also spread positive messages, or experiences, lessons that are helpful to others.
But you don’t need to be public about your personal happiness. You should not let everyone know the private things of you, the corners of your life.
You should not show off your personal happiness. Focus your mind and energy on maintaining the relationship, instead of showing it to the world.