Yes, this is a common request and I offer a dedicated "separation" or rival-removal casting alongside reconciliation work. It's designed to cool the connection between your partner and the third party and create space for your bond to be prioritized again.
I'll ask for the third party's name if you have it, though the ritual can still be performed with fewer details about them if needed — it's simply more precise with more information.
This is typically paired with a reconciliation or attraction casting for the best results, since removing a rival and rebuilding the primary bond work well together.