I broke up with my long term boyfriend a year and a half ago. Since then, my mother and sister have sent him Christmas and Easter cards, and then he sends them one back after he gets theirs. I thought it was odd the first time, and told them so. Thought it would be a one time thing. The other day my sister had me guess what "friend" she just received a Christmas card from...and said she sent him one first. They didn't even send him cards when we were together. Now they say they feel sorry for him because he's alone. No need to, he has family and friends. Is this going to go on for years? Or maybe they'll stop when I get a new boyfriend, and then send HIM cards when we break up. I think it's stupid and makes me uncomfortable. Would this make you upset too?
Your family knows how you feel about this. Maybe you should ask them that if they are going to send him cards, that is their decision, but that you don't need to know about it. You are moving on with your life. If you wanted to hear from him or about him, you would still be dating him.