Hello Josephine, welcome.
If you click into the spouse - click edit.
Brings you to the edit page.
Scroll down to spouse. Click - add/remove
You can then 'remove' the spouse. Says add or remove - when you click on remove - it takes you to the bottom of the page.
At the bottom of the page you see a circle o click on the spouse you wish to remove and click the black button.
Remember when you do this go back and check any profile that was attached/connected.