If you cannot return/exchange it now, would you be open to adding another piece in between? I know this might not be everyones aesthetic but if your desperate you can get a 8mm beaded gold bracelet (think Sydney Evan) and you could stack them between the Love and JUC and it should stop the JUC tail from touching your Love. The beaded bracelet shouldn't roll over the Love or JUC either as they are a bit more fitted. As its more fitted, it acts as a barrier. That way you aren't adding anything plastic or corded between the bracelets (which tends to take away from the general "look" of your stack) as the beaded bracelet is actually gold (I have a 14K rose gold version). You can get one without a charm too if you dont like anything to dangle (adds to scratch potential) or get them with diamond rondelles in between to add a bit of bling. Her gold pieces are usually in the $1-2,000 range but you can also get some online by other brands which are gold plated and far cheaper. I cannot vouch for the longevity of the plated ones but I heard they are ok. Plus for those ones you can choose size based on the measurement of your wrist.
Example of what I am referring to:
https://sydneyevan.com/products/gol...in-on-gold-beads?_pos=28&_sid=878e7de03&_ss=r
Thats in gold but if anyone wondered I do believe you can request it in rose gold (or white) too.