You will only get a notification for dating if the corresponding person has also marked you as down for dating. You will never get a notification that a person is interested in dating you unless you have also marked them as "Dating". It is totally unobtrusive, so get going and look through if there is anyone that interests you!
How to access the dating site (For legal reasons, you have to be over 18!):
Step 1: Login
Step 2: Go to your Profile by clicking HERE.
Step 3: Click on “Add to Dating Portal”. Click "update"
Optional and recommended step: Fill out all the information under the tab "Dating".
Step 5: Reload this page by clicking HERE. The portal will appear.