Ken-O-ration ✅ on Nostr: Hmm, this is perplexing... I got my girlfriend on mastodon. She opted to create her ...

Hmm, this is perplexing... I got my girlfriend on mastodon. She opted to create her account on "mastodon.social". Now she can, and does follow me, but I get this message, when I try to follow her;
(when I copy the link and paste it here in the search bar, I just get her profile again...)