Heather's twitter does make it seem that way but I honestly think that Tammy just lost it and raged until Heather was dead. I think the whole scenario of an open marriage was suggested to the public by Tammy to show there was no reason for jealousy, therefore eliminating motive. However, she underestimates the public bc she was unequivocally in love with Sidney throughout all of her Disboards and Facebook posts up until late last year when discord started showing on her Facebook, with the exception of a few complaining remarks from a couple years ago. However, all of that was deleted, some were just hidden from public I think, and then all of the hunky dory stuff started, which is when it becomes obvious she was posting to herself from Sidney's FB and also posting about herself on Sidney's FB as if he was the one making those posts. Blatantly obvious. Most of us here remember what was posted on those FB pages. So by Tammy raging on social media and not keeping her trap shut, she hung herself. Nobody looks more guilty than she does right now. Nobody faults her for freaking out about Heather, whether Heather chased him or Sidney chased her is beside the point, but to react by taking her life is way too far overboard.