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To add or edit your relationship status on Facebook, do the following:
1. Log into your Facebook account if you’ve not done already
2. Next, head straight to your profile and click About, then Family and Relationships in the left column.
3. Click Add your relationship status or hover over your relationship and click Edit to initiate a drop-down menu.
4. Select your relationship status from the drop-down menu. Depending on your status, you may also have the option to add the name of the person you’re in a relationship with and your anniversary.
5. Make use of the audience selector to choose who you want to share your latest status with.
6. Finally, select Save Changes.
To add a relationship to a life event on your Facebook profile, do the following;
1. While on Facebook, navigate to your Facebook profile and click About
2. From the new page that appears, click Life Events.
2. Choose the type of relationship or event you’d like to add. You may also have the option to add the name of the person you’re in a relationship with and your anniversary.
3. You’ll need to use the audience selector to choose who you want to share this event with.
4. Next, check the box next to Update relationship status to update your status in your profile.
5. Finally, click Save.
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Before you proceed on Facebook, bear in mind that you can only list someone in your relationship status if you’re friends with that person.
That person also needs to confirm that you’re in a relationship together before they’re listed in your relationship status.