When you click to view a player's profile, you can see his Relationship status below his name, to the right of his profile picture.

You can also view all players who have chosen to use the option and have set a status. To do this, follow these steps:
- Tap the "Settings" button next to your profile picture.
- Scroll down until you reach the "Search" option and click on it.
- Click the button to search for players by filter, to the right of the search bar and select a status from the "Relationship" tab. Then click the "Filter" button. 

This way, you will see all users who have selected the status you are interested in.