Tammy Slaton started off her weight loss journey timidly, but as her harrowing story's unfolded in Tammy has become more resentful every year in 1000-lb Sisters.

Unfortunately, there has been an escalation in the discord between Tammy and her siblings, Amy, Chris, Amanda, and Misty throughout the family's few years starring in 1000-lb Sisters. In season 1, Tammy and Amy illustrated that they have a typical sisterly bond. Although they might bicker every now and then, Amy and Tammy served as systems for one another during the pair's reality TV debut. As Tammy continued to share the spotlight with her family , however, her attitude grew more unpredictable and irritable. In 1000-lb Sisters season 3, Tammy's behavior is completely out of control as any concern voiced by a sibling is met with fierce opposition. Fans think Tammy's bitterness could take a hefty toll on the Slaton clan.

Related: 1000-Lb Sisters: Why Some Fans Don't Want Tammy Slaton To Lose Weight

So far, in 1000-lb Sisters season 3, Tammy's fought with her siblings about hiring a caretaker, her choice in boyfriends, and going away on vacation. Tammy even incited what almost turned into a physical fight between herself and Amanda after yelling at her family for buying her an electric scooter. The trailer for season 3 also indicated that a major blowout between Tammy and Amy is imminent. Although fans are now used to Tammy's unruly behavior, the reality star wasn't always the aggressive threat to the Slaton family she's become. At first, in fact, Tammy presented herself as a harmless victim. A Reddit recalled, "Tammy has dramatically changed. Tammy uses a cutesy child voice in season one... At one point Tammy says she feels like a burden to Amy." While some fans think Tammy was acting in season 1, others think jealousy has made her colder over time.

Tammy Slaton laughing in 1000-lb Sisters

When Tammy signed up for 1000-lb Sisters, she and Amy were in the same boat. Both Tammy and Amy were held prisoner by their weight and food addictions at the onset. By the end of season 1, however, Amy made enough progress in her weight loss quest that she was able to get bariatric surgery. From then on, Amy and her husband, Michael Halterman, were able to actualize their dreams of starting a family. Meanwhile, Tammy struggled to keep up with her diet and exercise routine. While Amy welcomed her baby boy, Gage, Tammy was gaining weight. Throughout season 3, Amy's prioritized her husband and son, Chris underwent weight loss surgery, and Tammy's regressing in her fitness goals. Viewers think Tammy's bitter that her siblings are suring her in their weight loss ventures. A fan assessed, "As Amy began to thrive, Tammy became envious and angrier."

Tammy might have been kinder a few years ago, but in 1000-lb Sisters season 3, viewers agree that the reality star is a certified villain. While some fans think she pretended to be more thoughtful and gentle in season 1, others think Tammy's become more aggressive over the years as she's witnessed Amy and Chris succeed in their weight loss journeys. Whether she was faking it or not, the Slaton family surely misses the more agreeable Tammy that starred in 1000-lb Sisters season 1.

Next: 1000-Lb Sisters: Why Tammy's Trying To Ruin The Slaton Family Vacation

Sources: haven1122/Reddit, ScheduleSensitive664/Reddit