If you and a friend want to Connect on Feeld, or else you'd like to Connect with the partner of an existing Connection, the best way to do this is to create a link to your profile and share it with your desired recipient:
Go to your profile settings by clicking on the human icon in the bottom-right corner.
Tap 'Share my profile'.
❗ The link that's created lasts 72 hours. If not opened in that time, you'll need to create a new link and try again.