Repost like notification in chat??

I went on one of my friends account (we both follow each other) and looked through her reposts for a bit and liked like 2 of them. To my horror i went to my chats and it sent her that i liked her repost in our chat 😭😭?? I know mutuals get a notification when you like a rp but since when does it send them a notification in chattttttt???

She's the only friend that gets those notifications actually (none of my other mutuals receive it i checked) and i don't know why. Does that only happen when you like rp when you're on someone's page? Does it have to do with a new feature being rolled out??

I checked with a my alt accounts and it doesn't send anything in chat no matter if i liked it from the fyp, someone's rp or the op's account directly. She's literally the only one that it does that with 💀💀

If anyone knows what this is due to please tell me 😭 i like stalking my friends reposts sometimes but i don't want them to know that, it feels too voyeurish loll

Edit: I've looked at it a bit more and it sends the same notification in chat as when you like something they've sent you. The thing is none of the reposts I've liked were tiktoks she sent me? Like 100% certainty she did not send them to me (I've looked through everything she sent me since we don't send much on here) so i'm kinda lost. Is it a bug or actually a new feature?