Unable to Sync between Phone & Watch

Hi I am new to the App and it looks amazing however, I added a bunch of watches to my Favorites and to also folders I categorized . I cannot Sync any watches to my Watch.

It worked fine the first day, but now (a few days later) nothing is happening

I have a Galaxy S3 on an Apple Xs, I use the Galaxy Watch App so that they recolonize each other & communicate with.

I tried using Watch faces that are not in my favorite and it dont work

both Bluetooth are on and i also reinstalled the app on both the watch and phone.
I ensure that facer is on my watch, I click on the watch face i want on my phone, it says sending, and nothing happens

Please help.

Thank you