Darren x Kane / why does he act like this?

Why is it always like this?

"Can you guys stop already " Oliver  said looking at both Darren and Kane whom been arguing for 20 mins over where the group is going to have dinner at. "Who ever want Chinese food will go with  Kane and who ever wants Korean bbq will go with  Darren, here, problem solved,  now stop arguing" Oliver  said again trying to stop the argument "fine, I know everyone want Korean bbq anyways" Darren said staring right in Kane's eyes "whatever, yous go eat where ever yous want ima stay home and order Uber eats" Kane mumbled as he claimed up the stairs to his room "Kane wait, I'm down for Chinese food, com...." Oliver  tried saying but Kane was already on top of the stairs and heading to his room "Darren why are you always like this to Kane" Oliver asked concerned "what do you mean?" Darren asked knowing the answer "you know what I'm taking about, you always so rude to Kane for no reason, it's kinda concerning at this point" Oliver said "what are you trying to say here, kane is the rude one, not me" Darren said knowing damn well that's not true, "Darren seriously please stop this already, now go tell the boys to get ready" Oliver said as he has 0 hope that's Darren will admit he is wrong "alright, can't wait for Korean bbq!!" Darren said as he walks always like a kid whom just received candy.
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Kane POV
I quickly walked to my room after see the look on Darren face, I don't understand him, I never did, from the first day we meet, it was as if his eyes where telling me that I had not chance  from the beginning and that he won. which he kinda did since everyone would probably have chosen to go with him, and then out of kindness Oliver would probably come with me. It's always like this, I thought I was going to get used to it but lately it's been harder for me to endure it. me and Darren always had this mean rivalry thing going on between us, the boys and the followers  think it's a two sided thing but in reality darren started it from the start, he was always made  heavy jokes about everyone, but for some reason I always felt like he meant his "jokes" toward me, and it made my blood boil that I had to be mean back to him, that's the only reason the rivalry thing going on, it was never my idea.
I sat on my bed and turned my tv on and put on the anime that I've been watching, I really wanted to go out today, I've been feeling really lonely lately and want to have some fun but I guess that out of the question now, I sometimes feel like I don't really fit in with the rest of the boys and I feel like it's mostly Darren fault. I have been thinking of  talking to my brother (manager Ty) to penitently leave the group, it was all fun at the beginning but now it's just hurtful and annoying, maybe it's time for me quit this dream of mine and come back to reality, maybe even get a real job somewhere or maybe even return to uni. I was talking to my parents about this idea  and although they always wanted me to follow my dreams they are not against the idea, when I told them about the idea I really didn't know what things answer I was expecting, I kinda hoped for them the tell me that I should never stop chasing my dreams that's i should never quit, but they didn't. the problem is my brother I feel embarrassed to tell him such a thing, he always tried so hard to make sure that he finds me the right opportunities and I don't want to disappoint him.
I signed as I turned the tv off since I was not in the mood for anything and closed the lights as I went under the cover, I wish I sleep and get up and everything is different, where I don't have to worry about Darren next comment or next insult. I was really hungry before but suddenly I'm not hungry anymore for what ever reason, maybe I'll take a little nap....
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