Best friends grow apart, and Teen Wolf's Scott and Stiles are about to reach thier tipping point.

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Over the course of their high school career, the True Alpha and his snarky human ally have weathered werewolf hunters, a kanima, a darach, the oni and nogistune, the Benefactor, and eight different shades of teenage angst. It will take senior year and the Dark Doctors, however, to crack the foundation of their bromance.

"Best friends go through things, and Stiles and Scott are very different in their beliefs and their ability," Tyler Posey (Scott) explained at ATX Television Festival, according to People. "Scott's a werewolf, Stiles is a human, and it gets in the way a lot. Scott is very stubborn about his beliefs, and sometimes Stiles isn't able to do things the way Scott can."

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The season 5 promo already revealed that Stiles (Dylan O'Brien) can't understand - or support - Scott's decision to trust everyone, including their childhood pal Theo (see video below). It appears this will be just one of many intense disputes brewing under the surface the summer season kicks off.

"It's just normal friendship. I like the fact that they are doing it, and it shows true colors and friends," Posey continued. "Dylan and I have some great stuff coming up this season."

Find out more when Teen Wolf returns to MTV on June 29 at 10 p.m. ET.

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