The 100's second season was marred by betrayal, and those scars will not easily heal following the summer hiatus.

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For Octavia (Marie Avgeropoulos) and Clarke (Eliza Taylor), only time will tell if the Arker-turned Grounder and the young leader can reconcile.

"They are definitely at odds since [Clarke] didn't give [Octavia] the memo when they blew up Ton DC and luckily I wasn't there to be a part of that blast," Avgeropoulos told The Wrap. "There is definitely animosity between these two characters, but at the end of the day they're very compassionate and love each other at the end of the day. Octavia looks up to Clarke but I think, finally, now there has been a sort of dichotomy change [and she] looks up to Octavia too. The betrayal was such a major factor in season 2 and we'll see how they reconcile that in season 3."

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The pair will have trouble hashing out their problems with Clarke off on her walkabout, and Octavia isn't quite sure what her character will get up to in the meantime.

"I honestly have no idea [what will happen in season 3] because the writers have these wonderful, creative minds and it will be a surprise to me and the viewers too," Avgeropoulos explained.

Do you think Clarke and Octavia can mend their friendship, or did Clarke burn her bridges when she allowed the missile to hit Ton DC? Sound off in the comments below!

Find out more when The 100 returns to The CW this fall. Click the video below to see a preview for the series' latest episode.