how strong are cord cuttings?

so ive been doing alot of research on cord cutting but the outcome is me just wondering more lol so i know cord cutting are powerful but how powerful are they? for example if someone does a cord cutting does that mean the energy between the two people is completely cut and gone? what would happen if one of the two people to do love spell after? like what if the other person is also a witch and they do a love spell on you? is that even possible?