Hi DaniLongar,
Thanks for reaching out to Apple Support Communities.
It sounds like the pairing process on your Apple Watch has stalled.
We’re happy to assist.
We recommend checking out the steps in the section titled "If the pairing process stalls" from the article here: If you can't pair an Apple Watch with your iPhone - Apple Support
If it seems like the pairing process has stalled — for example, the pairing animation remains on the screen for several minutes — resetting your Apple Watch might help:
1) Press and hold the Digital Crown while your Apple Watch is in pairing mode.
2) Tap Reset when it appears on your watch.
3) After your watch resets, you can pair again.
The reason why we’re recommending the steps above is because they directly address the issue you initially posted about: the pairing process on your Apple Watch has stalled.
Please do not hesitate to reach back out to us if you have more questions
Cheers!