The reality star told the TOWIE official website she felt "relieved" to have ironed out her differences with Jon on the latest episode, after their friendship crumbled in recent weeks.
Jon is the elder brother of Amber's boyfriend Chris Clark. Things between Amber and Chris have been rocky lately, with Amber accusing Chris of not taking her feelings into account and being supportive as she goes through a difficult period at home.
"I feel like me and Jon always got on so well then obviously with me and Chris arguing, something happened but nothing actually happened. It was just the fact he was being a big brother to Chris and sticking up for him," said Amber.
"But now we've had a conversation and he sees my point of view."
Amber added: "Obviously he only ever heard Chris' side, and from what he's been saying, Chris painted a bad picture of me. Now Jon understands my point of view and where I'm coming from and I think he'll go back to Chris and say, 'You have to man up, Amber is going through quite a lot.'"
"I feel it's helped me because Jon can see where I'm coming from and that I'm not being horrible and just saying I don't want to be with Chris. There are a lot of reasons why I made that decision. "
She added: "I do miss [Chris] and care for him. He's an amazing person and has a good heart but a lot of things have happened that made me question how he felt towards me and his loyalty towards me. I have a lot going on and when times get tough will he go against me again? I don't know. We'll see what happens…"
Amber had explained to Jon: "I just feel every time I go to him and ring him and need to talk to him, everything is about him, how s**t he's feeling, what he's going through. I just thought, 'I'm not even ringing to moan about my mum being upset, I just need someone to lift my spirits and he weren't. He was making me worse. It got to the point where I thought, 'I don't want to be with him.'"
"If you don't want to be with him, you've got to tell him," advised Jon.
TOWIE continues Sunday at 10pm on ITVBe.
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