If you are forwarding the emails to your friends and loved ones and anyone is selecting the unsubscribe option, that very well could be the issue. To ensure that you can't be inadvertently unsubscribed again, please take the following steps every time you forward an email.

Please scroll down to the bottom before sending to delete the "Unsubscribe" button or "Remove" the hyperlink as shown below. You will need to RIGHT click on the button in order to remove the hyperlink. 

You will need to be careful NOT to left click on that button as a single click will unsubscribe you. If you are worried about clicking the wrong thing, just delete the text at the bottom of the email entirely. 

I hope this information is helpful. In the meantime, if you have any further questions or concerns please feel free to contact me.