1. I think there is no possibility of it having more than one field. You only can show one field of it.
2. You can delete it by clicking the "ex-partner" and then click the "Change or delete" section. Finally, click the "Delete ex-partner of (name)" (example: "Delete ex-partner of Johnny") and you will receive a note that appears with "Are you sure you want to permanentlly delete Partner (or Ex-partner) of (name)?". Then clicked the "Confirm" button.
P.S: Hope that helps, if I mistake this answer for your question, I would try another chance to reply it. ~ Daniel
