youngnhotcpl, This couple is soooo full of themselves it stinks. I would tell them once and for all that you are not interested in them any more and that you care not to have them call or write...
Should they continue to harass you, I would (with select chosen words) let them know you are willing to be blackmailed and that any further contact will be viewed as harassment. You may need to change your telco # and have it unlisted (don't forget to use #67 when dialing out)...
This situation is messy, and I can't see any friendly way to end it beyond your previous attempts...
